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Title: Hybrid Sound Modes in One-Dimensional Quantum Liquids

Here, we study sound in a single-channel one-dimensional quantum liquid. In contrast to classical fluids, instead of a single sound mode we find two modes of density oscillations. The speeds at which these two sound modes propagate are nearly equal, with the difference that scales linearly with the small temperature of the system. The two sound modes emerge as hybrids of the first and second sounds, and combine oscillations of both density and entropy of the liquid.
Authors:
 [1] ;  [2]
  1. Argonne National Lab. (ANL), Argonne, IL (United States)
  2. Univ. of Washington, Seattle, WA (United States)
Publication Date:
Grant/Contract Number:
AC02-06CH11357; FG02-07ER46452
Type:
Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 121; Journal Issue: 2; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Research Org:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE
OSTI Identifier:
1466399
Alternate Identifier(s):
OSTI ID: 1459700

Matveev, K. A., and Andreev, A. V.. Hybrid Sound Modes in One-Dimensional Quantum Liquids. United States: N. p., Web. doi:10.1103/PhysRevLett.121.026803.
Matveev, K. A., & Andreev, A. V.. Hybrid Sound Modes in One-Dimensional Quantum Liquids. United States. doi:10.1103/PhysRevLett.121.026803.
Matveev, K. A., and Andreev, A. V.. 2018. "Hybrid Sound Modes in One-Dimensional Quantum Liquids". United States. doi:10.1103/PhysRevLett.121.026803.
@article{osti_1466399,
title = {Hybrid Sound Modes in One-Dimensional Quantum Liquids},
author = {Matveev, K. A. and Andreev, A. V.},
abstractNote = {Here, we study sound in a single-channel one-dimensional quantum liquid. In contrast to classical fluids, instead of a single sound mode we find two modes of density oscillations. The speeds at which these two sound modes propagate are nearly equal, with the difference that scales linearly with the small temperature of the system. The two sound modes emerge as hybrids of the first and second sounds, and combine oscillations of both density and entropy of the liquid.},
doi = {10.1103/PhysRevLett.121.026803},
journal = {Physical Review Letters},
number = 2,
volume = 121,
place = {United States},
year = {2018},
month = {7}
}