Bulletin of the American Physical Society
APS March Meeting 2024
Monday–Friday, March 4–8, 2024; Minneapolis & Virtual
Session W54: AMO Technologies and Applications
3:00 PM–4:36 PM,
Thursday, March 7, 2024
Room: 203AB
Sponsoring
Unit:
DAMOP
Chair: Shiekh UDDIN, Massachusetts Institute of Technology
Abstract: W54.00007 : Gravitational wave analogues in spin nematics and cold atoms*
4:12 PM–4:24 PM
Presenter:
Nic Shannon
(Okinawa Institute of Science & Technology)
Authors:
Nic Shannon
(Okinawa Institute of Science & Technology)
Han Yan
(University of Tokyo)
Rico Pohle
(Keio University)
Yutaka Akagi
(University of Tokyo)
Leilee Chojnacki
(Okinawa Institute of Science & Technology)
Starting at the level of the action, we first show that the low-energy effective field theory describing a spin nematic is in one-to-one correspondence with that of linearized gravity. We then identify a microscopic, spin-1 model whose low-energy excitations are relativistically dispersing, massless spin-2 Bosons, providing a direct analogue of gravitational waves in a flat spacetime. Finally, with the aid of simulation, we outline a procedure for observing these analogue gravitational waves in a cold gas of 23Na atoms.
These results suggest that spinor condensates could be used to simulate many of the essential features of linearised gravity.
*This work was supported by Japan Society for the Promotion of Science (JSPS) KAKENHI Grants No. JP19H05822, JP19H05825, JP20K14411, JP20H05154 and JP22H04469, MEXT "Program for Promoting Researches on the Supercomputer Fugaku", Grant No. JPMXP1020230411, JST PRESTO Grant No. JPMJPR2251, and by the Theory of Quantum Matter Unit, OIST.
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