Cavity-based architecture to preserve quantum coherence and entanglement

Abstract

Quantum technology relies on the utilization of resources, like quantum coherence and entanglement, which allow quantum information and computation processing. This achievement is however jeopardized by the detrimental effects of the environment surrounding any quantum system, so that finding strategies to protect quantum resources is essential. Non-Markovian and structured environments are useful tools to this aim. Here we show how a simple environmental architecture made of two coupled lossy cavities enables a switch between Markovian and non-Markovian regimes for the dynamics of a qubit embedded in one of the cavity. Furthermore, qubit coherence can be indefinitely preserved if the cavity without qubit is perfect. We then focus on entanglement control of two independent qubits locally subject to such an engineered environment and discuss its feasibility in the framework of circuit quantum electrodynamics. With up-to-date experimental parameters, we show that our architecture allows entanglement lifetimes orders of magnitude longer than the spontaneous lifetime without local cavity couplings. This cavity-based architecture is straightforwardly extendable to many qubits for scalability.

12 pages, 9 figures, 1 table. To appear on Nature Scientific Reports

References in corpus (28)

• Quantum Computing
• Finite-Time Disentanglement via Spontaneous Emission
• Beyond the Jaynes-Cummings model: circuit QED in the ultrastrong coupling regime
• Demonstration of Two-Qubit Algorithms with a Superconducting Quantum Processor
• Sudden Death of Entanglement
• Non-Markovian effects on the dynamics of entanglement
• Quantum Open System Theory: Bipartite Aspects
• Climbing the Jaynes-Cummings Ladder and Observing its Sqrt(n) Nonlinearity in a Cavity QED System
• Protecting entanglement via the quantum Zeno effect
• Heralded Entanglement between Atomic Ensembles: Preparation, Decoherence, and Scaling
• Sudden Death of Entanglement of Two Jaynes-Cummings Atoms
• Entanglement dynamics of two independent qubits in environments with and without memory
• Experimental investigation of the dynamics of entanglement: Sudden death, complementarity, and continuous monitoring of the environment
• Direct measurement of finite-time disentanglement induced by a reservoir
• Experimental entanglement distillation of mesoscopic quantum states
• Experimental on-demand recovery of entanglement by local operations within non-Markovian dynamics
• Non-Markovian entanglement dynamics of quantum continuous variable systems in thermal environments
• Preserving entanglement and nonlocality in solid-state qubits by dynamical decoupling
• Harnessing non-Markovian quantum memory by environmental coupling
• Protection of quantum systems by nested dynamical decoupling
• Entanglement dynamics in superconducting qubits affected by local bistable impurities
• Quantum error correction may delay, but also cause, entanglement sudden death
• Protecting unknown two-qubit entangled states by nesting Uhrig's dynamical decoupling sequences
• Reducing Spontaneous Emission in Circuit Quantum Electrodynamics by a Combined Readout/Filter Technique
• Entanglement and its dynamics in open, dissipative systems
• Hidden entanglement in the presence of random telegraph dephasing noise
• Spin-echo entanglement protection from random telegraph noise
• Violating Bell's inequality with an artificial atom and a cat state in a cavity

Cited by in corpus (53)

• Non-perturbative treatment of non-Markovian dynamics of open quantum systems
• Implications of non-Markovian dynamics for the Landauer bound
• Protecting entanglement by adjusting the velocities of moving qubits inside non-Markovian environments
• Quantum coherence of planar spin models with Dzyaloshinsky-Moriya interaction
• Temperature effects on quantum non-Markovianity via collision models
• Enabling quantum non-Markovian dynamics by injection of classical colored noise
• Dissipatively Coupled Waveguide Networks for Coherent Diffusive Photonics
• Relations between entanglement and purity in non-Markovian dynamics
• Non-Markovianity and coherence of a moving qubit inside a leaky cavity
• Atomic Bell measurement via two-photon interactions
• Quantum coherence and entanglement preservation in Markovian and non-Markovian dynamics via additional qubits
• Overview on the phenomenon of two-qubit entanglement revivals in classical environments
• Inhibiting decoherence of two-level atom in thermal bath by presence of boundaries
• Dynamics of spatially indistinguishable particles and entanglement protection
• Topological Protection of Coherence in a Dissipative Environment
• Noise suppression via generalized-Markovian processes
• Experimental tests of coherence and entanglement conservation
• Entanglement robustness via spatial deformation of identical particle wave functions
• Non-Markovianity induced by a single-photon packet in a one-dimensional waveguide
• Effects of cavity-cavity interaction on the entanglement dynamics of a generalized double Jaynes-Cummings model
• Improving the precision of frequency estimation via long-time coherences
• Sudden death and rebirth of Entanglement for Different Dimensional Systems driven by a Classical Random External Field
• Open-system many-body dynamics through interferometric measurements and feedback
• Modular Quantum Information Processing by Dissipation
• Influence of the external pressure on the quantum correlations of molecular magnets
• Quantum information scrambling in non-Markovian open quantum systems
• Non-Markovian coherent feedback control of quantum dot systems
• Ohmic Reservoir-based non-Markovianity and Quantum Speed Limit Time
• Entanglement witness and entropy uncertainty of open Quantum systems under Zeno effect
• Discrete dynamics and non-Markovianity
• Scalable quantum computing model in the circuit-QED lattice with circulator function
• Characterizing nonclassical correlation using affinity
• Entanglement thresholds for displaying the quantum nature of teleportation
• Quantumness and speedup limit of a qubit under transition frequency modulation
• Generalized approach to quantify correlations in bipartite quantum systems
• Regular patterns in the information flow of local dephasing channels
• Effects of Kerr medium in coupled cavities on quantum state transfer
• Stabilizing coherence with nested environments: a numerical study using kicked Ising models
• Topological Protection of Coherence in Noisy Open Quantum Systems
• Universal freezing of asymmetry
• Protecting coherence by environmental decoherence: A solvable paradigmatic model
• Indistinguishability-assisted two-qubit entanglement distillation
• Diffusive lossless energy and coherence transfer by noisy coupling
• Non-Markovianity and memory of the initial state
• Formation of spectral triplets induced by parity deformation in a quantum dot-cavity system
• Unitary Evolutions Sourced By Interacting Quantum Memories: Closed Quantum Systems Directing Themselves Using Their State Histories
• Influence of classic noise on entangled state formation in parametric systems
• Comparison of Perfect and Quasi Werner States
• Suppressing decoherence in quantum state transfer with unitary operations
• Protecting coherence in the non-Hermitian two-level system
• Bipartite quantum coherence in noninertial frames
• Thermal Quantum Speed Limit for Classical-Driving Open Systems
• Preservation of dynamics in coupled cavity system using second order nonlinearity