Dephasing-assisted diffusive dynamics in superconducting quantum circuits
arXiv:2411.15571 · doi:10.1063/5.0294573
Abstract
Random fluctuations caused by environmental noise can lead to decoherence in quantum systems. Exploring and controlling such dissipative processes is both fundamentally intriguing and essential for harnessing quantum systems to gain practical advantages and deeper insights. In this work, we first demonstrate the diffusive dynamics assisted by controlled dephasing noise in superconducting quantum circuits, contrasting with coherent evolution. We show that dephasing can give distinct dynamical behavior in a superconducting qubit array with quasiperiodic order. Furthermore, by preparing different excitation distributions in the qubit array, we observe that a more localized initial state relaxes to a uniformly distributed mixed state faster with dephasing noise, illustrating another counterintuitive phenomenon called Mpemba-effect-like quantum dynamics, i.e., a far-from-equilibrium state can relax toward the equilibrium faster. These results deepen our understanding of diffusive dynamics at the microscopic level, and demonstrate controlled dissipative processes as a valuable tool for investigating Markovian open quantum systems.
6+16 pages, 4+12 figures, accepted by APL
References in corpus (44)
- Introduction to Quantum Noise, Measurement and Amplification
- Exceptional Topology of Non-Hermitian Systems
- Suppressing quantum errors by scaling a surface code logical qubit
- Dephasing assisted transport: Quantum networks and biomolecules
- Lieb-Robinson bounds and the generation of correlations and topological quantum order
- Confining the state of light to a quantum manifold by engineered two-photon loss
- The Kerr-Cat Qubit: Stabilization, Readout, and Gates
- Quantum state tomography across the exceptional point in a single dissipative qubit
- Dissipative production of a maximally entangled steady state
- Dissipative Phase Transition in Central Spin Systems
- A Dissipatively Stabilized Mott Insulator of Photons
- Engineered Dissipation for Quantum Information Science
- {\it Colloquium:} Statistical Mechanics and Thermodynamics at Strong Coupling: Quantum and Classical
- Quantum phase transition in a far from equilibrium steady state of XY spin chain
- Nonequilibrium many-body steady states via Keldysh formalism
- Quantum jumps in the non-Hermitian dynamics of a superconducting qubit
- Protecting a Bosonic Qubit with Autonomous Quantum Error Correction
- Coherent oscillations inside a quantum manifold stabilized by dissipation
- Exponentially accelerated approach to stationarity in Markovian open quantum systems through the Mpemba effect
- Universal stabilization of a parametrically coupled qubit
- Decoherence Induced Exceptional Points in a Dissipative Superconducting Qubit
- Quantum Mpemba effect in a quantum dot with reservoirs
- Stable Quantum-Correlated Many Body States through Engineered Dissipation
- Observation of topological phase with critical localization in a quasi-periodic lattice
- Thermodynamics of the quantum Mpemba effect
- Noise-induced subdiffusion in strongly localized quantum systems
- Experimental implementation of fully controlled dephasing dynamics and synthetic spectral densities
- Noise-induced quantum synchronization
- Trade off-Free Entanglement Stabilization in a Superconducting Qutrit-Qubit System
- Identifying a bath-induced Bose liquid in interacting spin-boson models
- Reservoir Computing Approach to Quantum State Measurement
- Coherent transfer of electron spin correlations assisted by dephasing noise
- Dephasing-induced mobility edges in quasicrystals
- Long-Range Coherence and Multiple Steady States in a Lossy Qubit Array
- Dynamical universality classes towards an infinite temperature state
- Photonic Mpemba effect
- Fate of topological states in incommensurate generalized Aubry-André models
- Exact solution of the infinite-range dissipative transverse-field Ising model
- Thermodynamics of quantum trajectories on a quantum computer
- Exact Results for a Boundary-Driven Double Spin Chain and Resource-Efficient Remote Entanglement Stabilization
- Competition between two-photon driving, dissipation and interactions in bosonic lattice models: an exact solution
- Probing Site-Resolved Current in Strongly Interacting Superconducting Circuit Lattices
- Autonomous Stabilization of Fock States in an Oscillator against Multiphoton Losses
- Observation of multiple steady states with engineered dissipation