Quantum time crystals with programmable disorder in higher dimensions
- URL: http://arxiv.org/abs/2004.07267v4
- Date: Sat, 12 Jun 2021 06:20:25 GMT
- Title: Quantum time crystals with programmable disorder in higher dimensions
- Authors: A. Kshetrimayum, M. Goihl, D. M. Kennes, J. Eisert
- Abstract summary: We present fresh evidence for the presence of discrete quantum time crystals in two spatial dimensions.
They are intricate quantum systems that break discrete time translation symmetry in driven quantum many-body systems undergoing non-equilibrium dynamics.
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- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: We present fresh evidence for the presence of discrete quantum time crystals
in two spatial dimensions. Discrete time crystals are intricate quantum systems
that break discrete time translation symmetry in driven quantum many-body
systems undergoing non-equilibrium dynamics. They are stabilized by many-body
localization arising from disorder. We directly target the thermodynamic limit
using instances of infinite tensor network states and implement disorder in a
translationally invariant setting by introducing auxiliary systems at each
site. We discuss how such disorder can be realized in programmable quantum
simulators: This gives rise to the interesting situation in which a classical
tensor network simulation can contribute to devising a blueprint of a quantum
simulator featuring pre-thermal time crystalline dynamics, one that will yet
ultimately have to be built in order to explore the stability of this phase of
matter for long times.
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