Colloquium: Quantum and classical discrete time crystals

MP Zaletel, M Lukin, C Monroe, C Nayak, F Wilczek… - Reviews of Modern …, 2023 - APS
The spontaneous breaking of time-translation symmetry has led to the discovery of a new
phase of matter: the discrete time crystal. Discrete time crystals exhibit rigid subharmonic …

Condensed matter physics in big discrete time crystals

P Hannaford, K Sacha - AAPPS Bulletin, 2022 - Springer
We review the application of discrete time crystals created in a Bose-Einstein condensate
(BEC) of ultracold atoms bouncing resonantly on an oscillating atom mirror to the …

Creating big time crystals with ultracold atoms

K Giergiel, T Tran, A Zaheer, A Singh… - New Journal of …, 2020 - iopscience.iop.org
We investigate the size of discrete time crystals s (ratio of response period to driving period)
that can be created for a Bose–Einstein condensate (BEC) bouncing resonantly on an …

Square-root Floquet topological phases and time crystals

RW Bomantara - Physical Review B, 2022 - APS
Periodically driven (Floquet) phases are attractive due to their ability to host unique physical
phenomena with no static counterparts. We propose a general approach in nontrivially …

Six-dimensional time-space crystalline structures

G Žlabys, C Fan, E Anisimovas, K Sacha - Physical Review B, 2021 - APS
Time crystalline structures are characterized by regularity that single-particle or many-body
systems manifest in the time domain, closely resembling the spatial regularity of ordinary …

Prolonging a discrete time crystal by quantum-classical feedback

G Camacho, B Fauseweh - Physical Review Research, 2024 - APS
Nonequilibrium phases of quantum matter featuring time crystalline eigenstate order have
been realized recently on noisy intermediate-scale quantum (NISQ) devices. While ideal …

Discrete time crystals with absolute stability

K Giergiel, J Wang, BJ Dalton, P Hannaford, K Sacha - Physical Review B, 2023 - APS
We show that interacting bosons on a ring which are driven periodically by a rotating
potential can support discrete time crystals whose absolute stability can be proven. The …

Many-body effects and quantum fluctuations for discrete time crystals in Bose–Einstein condensates

J Wang, P Hannaford, BJ Dalton - New Journal of Physics, 2021 - iopscience.iop.org
We present a fully comprehensive multi-mode quantum treatment based on the truncated
Wigner approximation (TWA) to study many-body effects and effects of quantum fluctuations …

Synthetic dimensions for topological and quantum phases

J Argüello-Luengo, U Bhattacharya, A Celi… - Communications …, 2024 - nature.com
The concept of synthetic dimensions works particularly well in atomic physics, quantum
optics, and photonics, where the internal degrees of freedom (Zeeman sublevels of the …

Inseparable time-crystal geometries on the Möbius strip

K Giergiel, A Kuroś, A Kosior, K Sacha - Physical Review Letters, 2021 - APS
Description of periodically and resonantly driven quantum systems can lead to solid state
models where condensed matter phenomena can be investigated in time lattices formed by …