Entanglement assisted probe of the non-Markovian to Markovian transition in open quantum system dynamics

Abstract

We utilize a superconducting qubit processor to experimentally probe non-Markovian dynamics of an entangled qubit pair. We prepare an entangled state between two qubits and monitor the evolution of entanglement over time as one of the qubits interacts with a small quantum environment consisting of an auxiliary transmon qubit coupled to its readout cavity. We observe the collapse and revival of the entanglement as a signature of quantum memory effects in the environment. We then engineer the non-Markovianity of the environment by populating its readout cavity with thermal photons to show a transition from non-Markovian to Markovian dynamics, ultimately reaching a regime where the quantum Zeno effect creates a decoherence-free subspace that effectively stabilizes the entanglement between the qubits.

13 pages, 8 figures

References in corpus (15)

• Charge insensitive qubit design derived from the Cooper pair box
• QuTiP 2: A Python framework for the dynamics of open quantum systems
• Assessing non-Markovian dynamics
• Quantum trajectory approach to circuit QED: Quantum jumps and the Zeno effect
• Quantum back-action of variable-strength measurement
• Engineered Dissipation for Quantum Information Science
• Decoherence, Entanglement and Irreversibility in Quantum Dynamical Systems with Few Degrees of Freedom
• Demonstration of non-Markovian process characterisation and control on a quantum processor
• Internal Consistency of Fault-Tolerant Quantum Error Correction in Light of Rigorous Derivations of the Quantum Markovian Limit
• Incoherent qubit control using the quantum Zeno effect
• Non-Markovianity-assisted high-fidelity Deutsch-Jozsa algorithm in diamond
• Global Correlation and Local Information Flows in Controllable Non-Markovian Open Quantum Dynamics
• Experimental realization of high-fidelity teleportation via non-Markovian open quantum system
• Single Qubit Error Mitigation by Simulating Non-Markovian Dynamics
• Master Equation Emulation and Coherence Preservation with Classical Control of a Superconducting Qubit

Cited by in corpus (18)

• Chiral Bell-state transfer via dissipative Liouvillian dynamics
• Benchmarking quantum gates and circuits
• Experimental observation of non-Markovian quantum exceptional points
• SQuADDS: A validated design database and simulation workflow for superconducting qubit design
• Agnostic Phase Estimation
• Non-Markovian to Markovian decay in structured environments with correlated disorder
• Gate Operations for Superconducting Qubits and Non-Markovianity
• Machine learning of quantum channels on NISQ devices
• Spectral signatures of the Markovian to Non-Markovian transition in open quantum systems
• Virtual Z gates and symmetric gate compilation
• Quantifying spectral signatures of non-Markovianity beyond the Born-Redfield master equation
• Witnessing global memory effects of multiqubit correlated noisy channels by Hilbert-Schmidt speed
• Characterization of non-Markovianity with maximal extractable qubit-reservoir entanglement
• Correspondence between quasiparticle dissipation and quantum information decay in open quantum systems
• Continuous quantum correction on Markovian and Non-Markovian models
• Memory Effects and Entanglement Dynamics of Finite time Acceleration
• Dynamics and Control of Two Coupled Quantum Oscillators: An Analytical Approach
• Supercorrelated decay in a quasiperiodic nonlinear waveguide: From Markovian to non-Markovian transitions