Observation of tunable discrete time crystalline phases
arXiv:2302.13318 · doi:10.1103/mpjd-8h6w
Abstract
Discrete time crystals (DTCs) are emergent non-equilibrium phases of periodically driven many-body systems, with potential applications ranging from quantum computing to sensing and metrology. There has been significant recent interest in understanding mechanisms leading to DTC formation and a search for novel DTC phases beyond subharmonic entrainment. Here, we report observation of multiple DTC phases in a nanoelectromechanical system (NEMS) based on coupled graphene and silicon nitride membranes. We confirm the time-crystalline nature of these symmetry broken phases by establishing their many-body characters, long-range time and spatial order, and rigidity against parameter fluctuation or noise. Furthermore, we employ controlled mechanical strain to drive the transitions between phases with different symmetries, thereby mapping the emergent time-crystalline phase diagram. Overall, our work takes a step towards establishing time crystals as a system with complexity rivaling that of solid state crystals.
8 pages, 4 figures
References in corpus (36)
- Observation of a Discrete Time Crystal
- Observation of discrete time-crystalline order in a disordered dipolar many-body system
- Floquet Time Crystals
- On the phase structure of driven quantum systems
- Coherent quantum state storage and transfer between two phase qubits via a resonant cavity
- Discrete time crystals: rigidity, criticality, and realizations
- Time crystals: a review
- Controlling many-body dynamics with driven quantum scars in Rydberg atom arrays
- Classical Time Crystals
- Observation of Time-Crystalline Eigenstate Order on a Quantum Processor
- Observation of a dissipative time crystal
- Observation of a prethermal discrete time crystal
- Graphene Squeeze-Film Pressure Sensors
- Coherent control of a nanomechanical two-level system
- Force sensitivity of multilayer graphene optomechanical devices
- Mesoscopic physics of nanomechanical systems
- Dicke time crystals in driven-dissipative quantum many-body systems
- Classical Discrete Time Crystals
- Time crystals in periodically driven systems
- Classical many-body time crystals
- Discrete time-crystalline order enabled by quantum many-body scars: entanglement steering via periodic driving
- Two-mode squeezing in an electromechanical resonator
- Classical Prethermal Phases of Matter
- Parametric oscillation, frequency mixing and injection locking of strongly coupled nanomechanical resonator modes
- Persistent coherent beating in coupled parametric oscillators
- Parametric symmetry breaking in a nonlinear resonator
- Floquet Phases of Matter via Classical Prethermalization
- Ultrasensitive hysteretic force sensing with parametric nonlinear oscillators
- Giant Tunable Mechanical Nonlinearity in Graphene-Silicon Nitride Hybrid Resonator
- Simulating complex quantum networks with time crystals
- Motion transduction with thermo-mechanically squeezed graphene resonator modes
- Resolution Limits of Resonant Sensors with Duffing Non-Linearity
- Nonlinear two-level dynamics of quantum time crystals
- Coffee stains, cell receptors, and time crystals: Lessons from the old literature
- Stochastic discrete time crystals: Entropy production and subharmonic synchronization
- Anharmonic classical time crystals: A coresonance pattern formation mechanism