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Holographic Dissipative Spacetime Supersolids.

Peng Yang1,2, Matteo Baggioli2,3, Zi Cai2,3

  • 1School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China.

Physical Review Letters
|December 15, 2023
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Summary
This summary is machine-generated.

Researchers discovered a novel spacetime supersolid phase breaking time, space, and internal symmetries in a driven superfluid. This new phase transitions to synchronized superfluid and normal fluid phases with increasing temperature.

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Area of Science:

  • Condensed matter physics
  • Quantum field theory
  • Statistical mechanics

Background:

  • Spontaneous symmetry breaking is key to understanding phases of matter.
  • Driving systems out of equilibrium allows for novel symmetry-breaking phenomena, including temporal symmetries.
  • Nonequilibrium phases of matter offer new avenues for scientific exploration.

Purpose of the Study:

  • To investigate a driven-dissipative superfluid model.
  • To explore the interplay of temporal, spatial, and internal symmetries.
  • To identify novel nonequilibrium phases of matter.

Main Methods:

  • Utilized holographic methods to model a driven-dissipative superfluid.
  • Incorporated finite temperature effects naturally through holographic techniques.
  • Analyzed the complex phase diagram of the system.

Main Results:

  • Revealed the existence of a spacetime supersolid (STS) phase.
  • Observed concomitant breaking of time translation, spatial translation, and U(1) internal symmetry in the STS phase.
  • Identified a cascade of out-of-equilibrium phase transitions: STS to synchronized superfluid to normal fluid with increasing temperature.

Conclusions:

  • The study demonstrates a novel phase of matter, the spacetime supersolid, in driven-dissipative systems.
  • Holographic methods provide a powerful tool for exploring complex nonequilibrium phenomena.
  • Understanding these transitions is crucial for advancing the study of quantum matter out of equilibrium.