![Keiko Kokeyama BSc, MSc, PhD, FHEA](https://profiles-cardiff.imgix.net/attachments/4420?w=200&h=200&auto=format&crop=faces&fit=crop&q=90")
Dr Keiko Kokeyama
(hi/ei)
BSc, MSc, PhD, FHEA
- Ar gael fel goruchwyliwr ôl-raddedig
Timau a rolau for Keiko Kokeyama
Uwch Ddarlithydd
Sefydliad Archwilio Disgyrchiant
Trosolwyg
Rwy'n ffisegydd arbrofol mewn gwyddoniaeth synhwyrydd tonnau disgyrchiant. Ers canfod tonnau disgyrchiant cyntaf o uno twll du deuaidd yn 2015, ac yna uno seren niwtron yn 2017, mae wedi bod yn oes aur astroffiseg tonnau disgyrchiant. Mae'r synwyryddion tonnau disgyrchiant yn interferomedrau laser i ganfod ystumiadau gofod-amser a achosir gan donnau disgyrchiant, sy'n dod o rywle yn y bydysawd. Oherwydd bod ystumiadau gofod-amser yn fach iawn, fel arfer gorchymyn o 10^(-21) m (0.000...21 sero... 001 m, un miliyfed o ddiamedr proton), mae'r synwyryddion tonnau disgyrchiant yn hynod sensitif, mor fanwl ag y mae terfyn ansicrwydd Heisenberg yn caniatáu. Gweithiais ar ddau synhwyrydd ar raddfa fawr, y synhwyrydd LIGO Livingston a'r synhwyrydd KAGRA, i wneud i'r synhwyrydd weithio a gwella'r sensitifrwydd i redeg yr arsylwadau astroffisegol. Oherwydd bod yn rhaid i'r offerynnau fod yn sensitif iawn, mae llawer o dechnolegau o'r radd flaenaf yn cael eu datblygu a'u gweithredu. Ar hyn o bryd, yng Nghaerdydd, rwy'n gweithio ar dechnolegau newydd i wneud synwyryddion y dyfodol yn fwy sensitif. Rydyn ni eisiau arsylwi mwy o nifer o uniadau twll du neu sêr niwtron o hyd yn oed y bydysawd tad.
Ewch i'n gwefan i gael rhagor o wybodaeth: https://exp.gravity.cf.ac.uk/
Cyhoeddiad
2026
- Abac, A. G. et al., 2026. GW240925 and GW250207: Astrophysical calibration of gravitational wave detectors. Physical Review Letters 137 071401. (10.1103/gzrj-mwv3)
- Abac, A. G. et al., 2026. GWTC-4.0: Constraints on the Cosmic Expansion Rate and Modified Gravitational-wave Propagation. The Astrophysical Journal Letters 1007 (1) L17. (10.3847/2041-8213/ae69dd)
- Abac, A. G. et al., 2026. Narrowband searches for continuous gravitational waves from known pulsars in the first two parts of the Fourth LIGO–Virgo–KAGRA observing run. The Astrophysical Journal 1005 (2) 221. (10.3847/1538-4357/ae77fc)
- Abac, A. G. et al., 2026. GWTC-4.0: population properties of merging compact binaries. The Astrophysical Journal Letters 1005 (2) L51. (10.3847/2041-8213/ae771e)
- Abac, A. G. et al., 2026. Constraints on gravitational waves from the 2024 Vela pulsar glitch. The Astrophysical Journal 1005 (1) 12. (10.3847/1538-4357/ae63bc)
- Abac, A. G. et al., 2026. GWTC-4.0: Methods for identifying and characterizing gravitational-wave transients. The Astrophysical Journal Letters 1004 (2) L21. (10.3847/2041-8213/ae447b)
- Abac, A. G. et al., 2026. GWTC-4.0: Updating the gravitational-wave transient catalog with observations from the first part of the fourth LIGO–Virgo–KAGRA observing run. The Astrophysical Journal Letters 1004 (2) L22. (10.3847/2041-8213/ae2c74)
- Abac, A. G. et al., 2026. GW230814: Investigation of a loud gravitational-wave signal observed with a single detector. The Astrophysical Journal Letters 1004 (2) L23. (10.3847/2041-8213/ae2ad3)
- Abac, A. G. et al., 2026. Open Data from LIGO, Virgo, and KAGRA through the First Part of the Fourth Observing Run. The Astrophysical Journal 1004 (2) 232. (10.3847/1538-4357/ae211e)
- Al-Shammari, S. et al. 2026. Searches for continuous gravitational waves from supernova remnants in the first part of the LIGO-Virgo-KAGRA fourth observing run. The Astrophysical Journal 1004 (2) 204. (10.3847/1538-4357/ae6263)
- Abbasi, R. et al., 2026. Deep search for joint sources of gravitational waves and high-energy Neutrinos with IceCube during the third observing run of LIGO and Virgo. The Astrophysical Journal 1003 (1) 41. (10.3847/1538-4357/ae4e1b)
- Tanioka, S. et al. 2026. Tabletop experimental demonstration of a heterodyne polarimetry method for in situ substrate birefringence characterization in gravitational wave detectors. Applied Optics 65 (14), pp.4762-4770. (10.1364/AO.588208)
- Abac, A. et al., 2026. All-sky search for long-duration gravitational-wave transients in the first part of the fourth LIGO-Virgo-KAGRA observing run. Physical Review D 113 (8) 082004. (10.1103/83j3-pgk1)
- Umemura, K. et al., 2026. Quantum noise from vacuum field injection in optical cavities with diffraction-related loss. Applied Optics 65 (12), pp.4107-4116. (10.1364/ao.580911)
- Abac, A. G. et al., 2026. Black hole spectroscopy and tests of general relativity with GW250114. Physical Review Letters 136 (4) 041403. (10.1103/6c61-fm1n)
2025
- Al-Shammari, S. et al. 2025. GWTC-4.0: An introduction to version 4.0 of the Gravitational-Wave Transient Catalog. The Astrophysical Journal Letters 995 (1) L18. (10.3847/2041-8213/ae0c06)
- al-Shammari, S. et al. 2025. All-sky search for short gravitational-wave bursts in the first part of the fourth LIGO-Virgo-KAGRA observing run. Physical Review D 112 102005. (10.1103/wjdz-jdby)
- Iwaguchi, S. et al., 2025. Proof-of-principle experiment on a displacement-noise-free neutron interferometer for gravitational wave detection. Physical Review D (particles, fields, gravitation, and cosmology) 112 102002. (10.1103/yg4l-cj1t)
- Al-Shammari, S. et al. 2025. GW231123: A binary black hole merger with total mass 190–265 M⊙. The Astrophysical Journal Letters 993 (1) L25. (10.3847/2041-8213/ae0c9c)
- Aiello, L. et al., 2025. Tests of general relativity with GWTC-3. Physical Review D 112 084080. (10.1103/PhysRevD.112.084080)
- Al-Shammari, S. et al. 2025. GW241011 and GW241110: Exploring binary formation and fundamental physics with asymmetric, high-spin black hole coalescences. The Astrophysical Journal Letters 993 L21. (10.3847/2041-8213/ae0d54)
- Amarasinghege, O. et al. 2025. GW250114: Testing Hawking’s area law and the Kerr nature of black holes. Physical Review Letters 135 111403. (10.1103/kw5g-d732)
- Patra, A. et al. 2025. Broadband limits on stochastic length fluctuations from a pair of table-top interferometers. Physical Review Letters 135 101402. (10.1103/61j9-cjkk)
- Akutsu, T. et al., 2025. Identification of noise-associated glitches in KAGRA O3GK with hierarchical veto. Progress of Theoretical and Experimental Physics 2025 (8) 083F01. (10.1093/ptep/ptaf093)
- Tanioka, S. , Pearce, T. and Kokeyama, K. 2025. Development of a polarimetry method toward in situ substrate birefringence characterization of ground-based gravitational wave detectors. Review of Scientific Instruments 96 (7) 074503. (10.1063/5.0279006)
- Abac, A. G. et al., 2025. Search for gravitational waves emitted from SN 2023ixf. The Astrophysical Journal 985 (2) 183. (10.3847/1538-4357/adc681)
- Abac, A. G. et al., 2025. Search for continuous gravitational waves from known pulsars in the first part of the fourth LIGO-Virgo-KAGRA observing run. The Astrophysical Journal 983 (2) 99. (10.3847/1538-4357/adb3a0)
- Aiello, L. et al. 2025. Swift-BAT GUANO follow-up of gravitational-wave triggers in the Third LIGO–Virgo–KAGRA observing run. The Astrophysical Journal 980 (2) 207. (10.3847/1538-4357/ad9749)
2024
- Abac, A. G. et al., 2024. A search using GEO600 for gravitational waves coincident with fast radio bursts from SGR 1935+2154. The Astrophysical Journal 977 (2) 255. (10.3847/1538-4357/ad8de0)
- Wang, H. et al., 2024. Characterization of birefringence inhomogeneity of KAGRA sapphire mirrors from transmitted wavefront error measurements. Physical Review D (particles, fields, gravitation, and cosmology) 110 (8) 082007. (10.1103/physrevd.110.082007)
- Abac, A. G. et al., 2024. Search for eccentric black hole coalescences during the third observing run of LIGO and Virgo. The Astrophysical Journal 973 (2) 132. (10.3847/1538-4357/ad65ce)
- Abac, A. et al., 2024. Ultralight vector dark matter search using data from the KAGRA O3GK run. Physical Review D (particles, fields, gravitation, and cosmology) 110 (4) 042001. (10.1103/physrevd.110.042001)
- Abbott, R. et al., 2024. Search for gravitational-lensing signatures in the full third observing run of the LIGO–Virgo network. Astrophysical Journal 970 (191)(10.3847/1538-4357/ad3e83)
- Abac, A. G. et al., 2024. Observation of gravitational waves from the coalescence of a 2.5–4.5 M ⊙ compact object and a neutron star. The Astrophysical Journal Letters 970 (2) L34. (10.3847/2041-8213/ad5beb)
- Abbott, R. et al., 2024. Search for gravitational-wave transients associated with magnetar bursts in Advanced LIGO and Advanced Virgo data from the third observing run. The Astrophysical Journal 966 (1) 137. (10.3847/1538-4357/ad27d3)
- Fletcher, C. et al., 2024. A joint Fermi-GBM and Swift-BAT analysis of Gravitational-wave candidates from the third Gravitational-wave Observing Run. The Astrophysical Journal 964 (2) 149. (10.3847/1538-4357/ad1eed)
- Sakai, Y. et al., 2024. Training process of unsupervised learning architecture for gravity spy dataset. Annalen der Physik 536 (2) 2200140. (10.1002/andp.202200140)
2023
- Abbott, R. et al., 2023. Open Data from the Third Observing Run of LIGO, Virgo, KAGRA, and GEO. Astrophysical Journal Supplement 267 (2) 29. (10.3847/1538-4365/acdc9f)
- Abbott, R. et al., 2023. Constraints on the cosmic expansion history from GWTC–3. Astrophysical Journal 949 (2) 76. (10.3847/1538-4357/ac74bb)
- Abe, H. et al., 2023. Noise subtraction from KAGRA O3GK data using Independent Component Analysis. Classical and Quantum Gravity 40 (8) 085015. (10.1088/1361-6382/acc0cb)
- Akutsu, T. et al., 2023. Input optics systems of the KAGRA detector during O3GK. Progress of Theoretical and Experimental Physics 2023 (2) 023F01. (10.1093/ptep/ptac166)
2022
- Abbott, R. et al., 2022. Model-based cross-correlation search for gravitational waves from the low-mass x-ray binary scorpius x-1 in ligo o3 data. Astrophysical Journal Letters 941 (2) L30. (10.3847/2041-8213/aca1b0)
- Fairhurst, S. et al. 2022. All-sky search for continuous gravitational waves from isolated neutron stars using Advanced LIGO and Advanced Virgo O3 data. Physical Review D 106 (10)(10.1103/PhysRevD.106.102008)
- Abe, H. et al., 2022. Performance of the KAGRA detector during the first joint observation with GEO 600 (O3GK). Progress of Theoretical and Experimental Physics ptac093. (10.1093/ptep/ptac093)
- Abe, H. et al., 2022. The current status and future prospects of KAGRA, the large-scale cryogenic gravitational wave telescope built in the Kamioka underground. Galaxies 10 (3) 63. (10.3390/galaxies10030063)
- Sakai, Y. et al., 2022. Unsupervised learning architecture for classifying the transient noise of interferometric gravitational-wave detectors. Scientific Reports 12 (1) 9935. (10.1038/s41598-022-13329-4)
- Abbott, R. et al., 2022. Searches for gravitational waves from known pulsars at two harmonics in the second and third LIGO-Virgo observing runs. Astrophysical Journal 935 (1) 1. (10.3847/1538-4357/ac6acf)
- Abbott, R. et al., 2022. Search for gravitational waves associated with gamma-ray bursts detected by Fermi and Swift during the LIGO-Virgo Run O3b. Astrophysical Journal 928 (2) 186. (10.3847/1538-4357/ac532b)
- Abbott, R. et al., 2022. Search for intermediate-mass black hole binaries in the third observing run of Advanced LIGO and Advanced Virgo. Astronomy & Astrophysics 659 A84. (10.1051/0004-6361/202141452)
- Abbott, R. et al., 2022. Constraints on dark photon dark matter using data from LIGO's and Virgo's third observing run. Physical Review D 105 (6) 063030. (10.1103/PhysRevD.105.063030)
2021
- Abbott, R. et al., 2021. All-sky search for short gravitational-wave bursts in the third Advanced LIGO and Advanced Virgo run. Physical Review D 104 122004. (10.1103/PhysRevD.104.122004)
- Akutsu, T. et al., 2021. Overview of KAGRA: Calibration, detector characterization, physical environmental monitors, and the geophysics interferometer. Progress of Theoretical and Experimental Physics 2021 (5) 05A102. (10.1093/ptep/ptab018)
- Akutsu, T. et al., 2021. Overview of KAGRA: Detector design and construction history. Progress of Theoretical and Experimental Physics 2021 (5) 05A101. (10.1093/ptep/ptaa125)
- Akutsu, T. et al., 2021. Overview of KAGRA: KAGRA science. Progress of Theoretical and Experimental Physics 2021 (5) 05A103. (10.1093/ptep/ptaa120)
- Kawamura, S. et al., 2021. Current status of space gravitational wave antenna DECIGO and B-DECIGO. Progress of Theoretical and Experimental Physics 2021 (5) 05A105. (10.1093/ptep/ptab019)
- Akutsu, T. et al., 2021. Radiative cooling of the thermally isolated system in KAGRA gravitational wave telescope. Journal of Physics: Conference Series 1857 (1) 012002. (10.1088/1742-6596/1857/1/012002)
2020
- Yamada, R. et al., 2020. Optimization of quantum noise by completing the square of multiple interferometer outputs in quantum locking for gravitational wave detectors. Physics Letters A 384 (26) 126626. (10.1016/j.physleta.2020.126626)
- Abbott, B. P. et al., 2020. Prospects for observing and localizing gravitational-wave transients with Advanced LIGO, Advanced Virgo and KAGRA. Living Reviews in Relativity 23 (1) 3. (10.1007/s41114-020-00026-9)
- Zhu, Z. -. et al., 2020. Application of independent component analysis to the iKAGRA data. Progress of Theoretical and Experimental Physics 2020 (5) 053F01. (10.1093/ptep/ptaa056)
- Akutsu, T. et al., 2020. An arm length stabilization system for KAGRA and future gravitational-wave detectors. Classical and Quantum Gravity 37 (3) 035004. (10.1088/1361-6382/ab5c95)
2019
- Yamamoto, K. et al., 2019. Design and experimental demonstration of a laser modulation system for future gravitational-wave detectors. Classical and Quantum Gravity 36 (20) 205009. (10.1088/1361-6382/ab4489)
- Akiyama, Y. et al., 2019. Vibration isolation system with a compact damping system for power recycling mirrors of KAGRA. Classical and Quantum Gravity 36 (9) 095015. (10.1088/1361-6382/ab0fcb)
- KAGRA collaboration, and Kokeyama, K. 2019. KAGRA: 2.5 generation interferometric gravitational wave detector. Nature Astronomy 3 (1), pp.35-40. (10.1038/s41550-018-0658-y)
2018
- Kokeyama, K. et al. 2018. Demonstration for a two-axis interferometric tilt sensor in KAGRA. Physics Letters A 382 (29), pp.1950-1955. (10.1016/j.physleta.2018.05.004)
- Akutsu, T. et al., 2018. Construction of KAGRA: an underground gravitational-wave observatory. Progress of Theoretical and Experimental Physics 2018 (1) 013F01. (10.1093/ptep/ptx180)
2016
- Abbott, B. P. et al., 2016. GW150914: the advanced LIGO detectors in the era of first discoveries. Physical Review Letters 116 (13) 131103. (10.1103/PhysRevLett.116.131103)
- Abbott, B. P. et al., 2016. Astrophysical implications of the binary black hole merger GW150914. Astrophysical Journal Letters 818 (2) L22. (10.3847/2041-8205/818/2/L22)
- Abbott, B. P. et al., 2016. Observation of gravitational waves from a binary black hole merger. Physical Review Letters 116 (6) 061102. (10.1103/PhysRevLett.116.061102)
- Mueller, C. L. et al., 2016. The advanced LIGO input optics. Review of Scientific Instruments 87 (1) 014502. (10.1063/1.4936974)
2015
- Evans, M. et al., 2015. Observation of Parametric Instability in Advanced LIGO. Physical Review Letters 114 (16) 161102. (10.1103/PhysRevLett.114.161102)
2014
- Staley, A. et al., 2014. Achieving resonance in the advanced LIGO gravitational-wave interferometer. Classical and Quantum Gravity 31 (24) 245010. (10.1088/0264-9381/31/24/245010)
- Kokeyama, K. et al. 2014. Residual amplitude modulation in interferometric gravitational wave detectors. Journal of the Optical Society of America A 31 (1), pp.81-88. (10.1364/JOSAA.31.000081)
2013
- Lodhia, D. et al., 2013. Interferometer phase noise due to beam misalignment on diffraction gratings. Optics Express 21 (24), pp.29578-29591. (10.1364/OE.21.029578)
2012
- Fulda, P. et al., 2012. Review of the Laguerre-Gauss mode technology research program at Birmingham. Presented at: 9th Edoardo Amaldi Conference and Numerical Relativity - Data Analysis Meeting (Amaldi 9/NRDA 2011) Cardiff, Wales 10-15 July 2011. Vol. 363.IOP Publishing: Conference Series. , pp.012010. (10.1088/1742-6596/363/1/012010)
2011
- Bond, C. et al., 2011. Higher order Laguerre-Gauss mode degeneracy in realistic, high finesse cavities. Physical Review D - Particles, Fields, Gravitation and Cosmology 84 (10) 102002. (10.1103/PhysRevD.84.102002)
2010
- Somiya, K. , Kokeyama, K. and Nawrodt, R. 2010. Remarks on thermoelastic effects at low temperatures and quantum limits in displacement measurements. Physical Review D, Particles and fields 63 (8) 127101. (10.1103/PHYSREVD.82.127101)
- Fulda, P. et al., 2010. Experimental demonstration of higher-order Laguerre-Gauss mode interferometry. Physical Review D - Particles, Fields, Gravitation and Cosmology 82 (1) 012002. (10.1103/PhysRevD.82.012002)
2009
- Kokeyama, K. et al. 2009. Development of a displacement- and frequency-noise-free interferometer in a 3D configuration for gravitational wave detection. Physical Review Letters 103 171101. (10.1103/PhysRevLett.103.171101)
2008
- Kokeyama, K. et al. 2008. Development of a signal-extraction scheme for resonant sideband extraction. Classical and Quantum Gravity 25 (23) 235013. (10.1088/0264-9381/25/23/235013)
- Sato, S. et al., 2008. Demonstration of displacement-noise-free interferometry using bi-directional Mach-Zehnder interferometers. Classical and Quantum Gravity 25 (11) 114031. (10.1088/0264-9381/25/11/114031)
- Kokeyama, K. et al. 2008. The experimental plan of displacement- and frequency-noise free laser interferometer. Presented at: The Seventh Edoardo Amaldi Conference On Gravitational Waves (amaldi7) Sydney, Australia 8-14 July 2007. Vol. 122.IOP Publishing: Conference Series. (10.1088/1742-6596/122/1/012022)
2007
- Sato, S. et al., 2007. Diagonalization of the length sensing matrix of a dual recycled laser interferometer gravitational wave antenna. Physical Review D - Particles, Fields, Gravitation and Cosmology 75 (8) 082004. (10.1103/PhysRevD.75.082004)
- Sato, S. et al., 2007. Demonstration of displacement- and frequency-noise-free laser interferometry using bidirectional Mach-Zehnder Interferometers. Physical Review Letters 98 (14) 141101. (10.1103/PhysRevLett.98.141101)
2006
- Chen, Y. et al., 2006. Interferometers for displacement-noise-free gravitational-wave detection. Physical Review Letters 97 (15) 151103. (10.1103/PhysRevLett.97.151103)
- Kawazoe, F. et al., 2006. The experimental plan of the 4m resonant sideband extraction prototype for the LCGT. Journal of Physics: Conference Series 32 , pp.380-385. 058. (10.1088/1742-6596/32/1/058)
- Kokeyama, K. et al. 2006. Downselect of the signal extraction scheme for LCGT. Journal of Physics: Conference Series 32 065. (10.1088/1742-6596/32/1/065)
- Sato, S. et al., 2006. Diagonalizing sensing matrix of broadband RSE. Journal of Physics: Conference Series 32 , pp.470-475. 072. (10.1088/1742-6596/32/1/072)
Cynadleddau
- Fulda, P. et al., 2012. Review of the Laguerre-Gauss mode technology research program at Birmingham. Presented at: 9th Edoardo Amaldi Conference and Numerical Relativity - Data Analysis Meeting (Amaldi 9/NRDA 2011) Cardiff, Wales 10-15 July 2011. Vol. 363.IOP Publishing: Conference Series. , pp.012010. (10.1088/1742-6596/363/1/012010)
- Kokeyama, K. et al. 2008. The experimental plan of displacement- and frequency-noise free laser interferometer. Presented at: The Seventh Edoardo Amaldi Conference On Gravitational Waves (amaldi7) Sydney, Australia 8-14 July 2007. Vol. 122.IOP Publishing: Conference Series. (10.1088/1742-6596/122/1/012022)
Erthyglau
- Abac, A. G. et al., 2026. GW240925 and GW250207: Astrophysical calibration of gravitational wave detectors. Physical Review Letters 137 071401. (10.1103/gzrj-mwv3)
- Abac, A. G. et al., 2026. GWTC-4.0: Constraints on the Cosmic Expansion Rate and Modified Gravitational-wave Propagation. The Astrophysical Journal Letters 1007 (1) L17. (10.3847/2041-8213/ae69dd)
- Abac, A. G. et al., 2026. Narrowband searches for continuous gravitational waves from known pulsars in the first two parts of the Fourth LIGO–Virgo–KAGRA observing run. The Astrophysical Journal 1005 (2) 221. (10.3847/1538-4357/ae77fc)
- Abac, A. G. et al., 2026. GWTC-4.0: population properties of merging compact binaries. The Astrophysical Journal Letters 1005 (2) L51. (10.3847/2041-8213/ae771e)
- Abac, A. G. et al., 2026. Constraints on gravitational waves from the 2024 Vela pulsar glitch. The Astrophysical Journal 1005 (1) 12. (10.3847/1538-4357/ae63bc)
- Abac, A. G. et al., 2026. GWTC-4.0: Methods for identifying and characterizing gravitational-wave transients. The Astrophysical Journal Letters 1004 (2) L21. (10.3847/2041-8213/ae447b)
- Abac, A. G. et al., 2026. GWTC-4.0: Updating the gravitational-wave transient catalog with observations from the first part of the fourth LIGO–Virgo–KAGRA observing run. The Astrophysical Journal Letters 1004 (2) L22. (10.3847/2041-8213/ae2c74)
- Abac, A. G. et al., 2026. GW230814: Investigation of a loud gravitational-wave signal observed with a single detector. The Astrophysical Journal Letters 1004 (2) L23. (10.3847/2041-8213/ae2ad3)
- Abac, A. G. et al., 2026. Open Data from LIGO, Virgo, and KAGRA through the First Part of the Fourth Observing Run. The Astrophysical Journal 1004 (2) 232. (10.3847/1538-4357/ae211e)
- Al-Shammari, S. et al. 2026. Searches for continuous gravitational waves from supernova remnants in the first part of the LIGO-Virgo-KAGRA fourth observing run. The Astrophysical Journal 1004 (2) 204. (10.3847/1538-4357/ae6263)
- Abbasi, R. et al., 2026. Deep search for joint sources of gravitational waves and high-energy Neutrinos with IceCube during the third observing run of LIGO and Virgo. The Astrophysical Journal 1003 (1) 41. (10.3847/1538-4357/ae4e1b)
- Tanioka, S. et al. 2026. Tabletop experimental demonstration of a heterodyne polarimetry method for in situ substrate birefringence characterization in gravitational wave detectors. Applied Optics 65 (14), pp.4762-4770. (10.1364/AO.588208)
- Abac, A. et al., 2026. All-sky search for long-duration gravitational-wave transients in the first part of the fourth LIGO-Virgo-KAGRA observing run. Physical Review D 113 (8) 082004. (10.1103/83j3-pgk1)
- Umemura, K. et al., 2026. Quantum noise from vacuum field injection in optical cavities with diffraction-related loss. Applied Optics 65 (12), pp.4107-4116. (10.1364/ao.580911)
- Abac, A. G. et al., 2026. Black hole spectroscopy and tests of general relativity with GW250114. Physical Review Letters 136 (4) 041403. (10.1103/6c61-fm1n)
- Al-Shammari, S. et al. 2025. GWTC-4.0: An introduction to version 4.0 of the Gravitational-Wave Transient Catalog. The Astrophysical Journal Letters 995 (1) L18. (10.3847/2041-8213/ae0c06)
- al-Shammari, S. et al. 2025. All-sky search for short gravitational-wave bursts in the first part of the fourth LIGO-Virgo-KAGRA observing run. Physical Review D 112 102005. (10.1103/wjdz-jdby)
- Iwaguchi, S. et al., 2025. Proof-of-principle experiment on a displacement-noise-free neutron interferometer for gravitational wave detection. Physical Review D (particles, fields, gravitation, and cosmology) 112 102002. (10.1103/yg4l-cj1t)
- Al-Shammari, S. et al. 2025. GW231123: A binary black hole merger with total mass 190–265 M⊙. The Astrophysical Journal Letters 993 (1) L25. (10.3847/2041-8213/ae0c9c)
- Aiello, L. et al., 2025. Tests of general relativity with GWTC-3. Physical Review D 112 084080. (10.1103/PhysRevD.112.084080)
- Al-Shammari, S. et al. 2025. GW241011 and GW241110: Exploring binary formation and fundamental physics with asymmetric, high-spin black hole coalescences. The Astrophysical Journal Letters 993 L21. (10.3847/2041-8213/ae0d54)
- Amarasinghege, O. et al. 2025. GW250114: Testing Hawking’s area law and the Kerr nature of black holes. Physical Review Letters 135 111403. (10.1103/kw5g-d732)
- Patra, A. et al. 2025. Broadband limits on stochastic length fluctuations from a pair of table-top interferometers. Physical Review Letters 135 101402. (10.1103/61j9-cjkk)
- Akutsu, T. et al., 2025. Identification of noise-associated glitches in KAGRA O3GK with hierarchical veto. Progress of Theoretical and Experimental Physics 2025 (8) 083F01. (10.1093/ptep/ptaf093)
- Tanioka, S. , Pearce, T. and Kokeyama, K. 2025. Development of a polarimetry method toward in situ substrate birefringence characterization of ground-based gravitational wave detectors. Review of Scientific Instruments 96 (7) 074503. (10.1063/5.0279006)
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Ymchwil
Mae fy niddordebau ymchwil yn dod o fewn maes gwyddoniaeth synhwyrydd ar gyfer astroffiseg tonnau disgyrchiant.
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Datblygu synhwyrydd birefringence newydd
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Modelu synhwyro a rheoli uwch ar gyfer interferometers yr effeithir arnynt yn thermol
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Gweithredu drychau adlewyrchiad newidiol yn seiliedig ar effaith etalon
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Archwilio o systemau iawndal thermol amgen ar gyfer synwyryddion tonnau disgyrchiant y genhedlaeth nesaf
Am ragor o wybodaeth, ewch i wefan ein grŵp arbrofol: https://exp.gravity.cf.ac.uk/
Addysgu
Ymunwch â'm dosbarthiadau a phrosiectau tonnau disgyrchiant!
2024-25
- Technegau mewn Mesur Manwl (PXT906)
- Ffiseg Arbrofol (PXT1150)
- Prosiect Ffiseg MSC (PXT999)
2021-22, 2022-23, 2023-24
- Ffiseg Tonnau Disgyrchiant Arbrofol II (PXT902)
- Ffiseg Arbrofol (PXT1150)
- Prosiect Ffiseg (PXT3315 a 3350)
- Prosiect Ffiseg MSC (PXT999)
2021-22
- Ffiseg Tonnau Disgyrchiant Arbrofol II (PXT902)
Bywgraffiad
Aelodaethau proffesiynol
- Cydweithrediad Gwyddonol LIGO (2009 - 2014, 2021 - cyfredol)
- Cydweithrediad KAGRA (2015 - Cyfredol)
- Cynghreiriaid Disgyrchiant (2024 - Cyfredol)
- Bwrdd Cyngres Wyddonol KAGRA (2021 - 2023)
Safleoedd academaidd blaenorol
- 2024 - Cyfredol: Athro Cysylltiol, Prifysgol Nagoya, Japan (50% yn croesbenodi â Phrifysgol Caerdydd).
- 2024 - Cyfredol: Uwch Ddarlithydd, Prifysgol Caerdydd, y DU.
- 2021 - 2023: Darlithydd, Prifysgol Caerdydd, y DU.
- 2017 - 2021: Athro Cynorthwyol, Sefydliad Ymchwil Pelydrau Cosmig, Prifysgol Tokyo, Japan
- 2015 - 2017: Athro Cynorthwyol Prosiect, Sefydliad Ymchwil Pelydrau Cosmig, Prifysgol Tokyo, Japan
- 2011 - 2015: Ymchwilydd ôl-ddoethurol, Prifysgol Talaith Louisiana, UDA.
- 2009 - 2011: Ymchwilydd ôl-ddoethurol, Prifysgol Birmingham, y DU.
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Adeiladau'r Frenhines, Llawr 2, Ystafell N / 2.13, 5 The Parade, Heol Casnewydd, Caerdydd, CF24 3AA
+44 29225 14051
Adeiladau'r Frenhines, Llawr 2, Ystafell N / 2.13, 5 The Parade, Heol Casnewydd, Caerdydd, CF24 3AA
