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 probing the stability of this phase of matter that are quantum technological devices intermediate between analog quantum simulators and quantum computers, in a physical situation where classical tensor network methods are available only for short and intermediate times.
- Pub Date:
- April 2020
- Quantum Physics;
- Condensed Matter - Disordered Systems and Neural Networks;
- Condensed Matter - Strongly Correlated Electrons
- 10 pages, 9 figures, material on programmable quantum simulators added