Collective quantum stochastic resonance in Rydberg atoms

Abstract

We study the collective response of a group of dissipative Rydberg atoms to a periodic modulation of the Rydberg excitation laser. Focusing on the emergent collective-jump dynamics, where the system stochastically switches between states with distinct Rydberg excitations, we show that the counting statistics of the state switching is qualitatively changed by the periodic drive. The impact is most prominent when the driving frequency is comparable to the emergent collective-jump rate, as the jumps tend to synchronize with the external drive, and their counting statistics exhibits a series of suppressed subharmonics of the driving frequency. These phenomena are manifestations of a novel type of stochastic resonance, where a cooperative collective state switching is facilitated by quantum fluctuations in a many-body open system. Such a collective quantum stochastic resonance further leads to an enhanced signal-to-noise ratio in the power spectrum of the Rydberg excitations, for which the synchronized collective jumps are viewed as the output signal. We confirm the many-body quantum nature of the resonance by devising a cluster model, under which the role of many-body correlations is analyzed by changing the size of the atom clusters.

5+6 pages, 4+4 figures

References in corpus (17)

• Quantum information with Rydberg atoms
• Probing many-body dynamics on a 51-atom quantum simulator
• Dipole Blockade and Quantum Information Processing in Mesoscopic Atomic Ensembles
• The Quantum Jump Approach to Dissipative Dynamics in Quantum Optics
• Many-Body Physics with Individually-Controlled Rydberg Atoms
• Quantum Phases of Matter on a 256-Atom Programmable Quantum Simulator
• Programmable quantum simulation of 2D antiferromagnets with hundreds of Rydberg atoms
• Demonstration of multi-qubit entanglement and algorithms on a programmable neutral atom quantum computer
• Cooperative non-equilibrium phase transition in a dilute Rydberg ensemble
• Antiferromagnetic phase transition in a nonequilibrium lattice of Rydberg atoms
• Collective quantum jumps of Rydberg atoms
• Continuous Symmetry Breaking in a Two-dimensional Rydberg Array
• Stochastic Resonance Phenomena in Quantum Many-Body Systems
• Driven-dissipative many-body systems with mixed power-law interactions: Bistabilities and temperature-driven non-equilibrium phase transitions
• Intrinsic Optical Bistability in a Strongly-Driven Rydberg Ensemble
• Non-Markovian Stochastic Resonance of Light in a Microcavity
• Quantum Stochastic Resonance in Electron Shelving

Cited by in corpus (4)

• Nonlinearity-Enhanced Continuous Microwave Detection Based on Stochastic Resonance
• Interaction-Enhanced Superradiance of a Ryderg-Atom Array
• Quantization of nonlinear non-Hamiltonian systems
• Resonant dynamics of spin cluster in a periodically driven one-dimensional Rydberg lattice