Distinguishing between quantum and classical Markovian dephasing dissipation

Abstract

Understanding whether dissipation in an open quantum system is truly quantum is a question of both fundamental and practical interest. We consider n qubits subject to correlated Markovian dephasing and present a sufficient condition for when bath-induced dissipation can generate system entanglement and hence must be considered quantum. Surprisingly, we find that the presence or absence of time-reversal symmetry plays a crucial role: broken time-reversal symmetry is required for dissipative entanglement generation. Further, simply having nonzero bath susceptibilities is not enough for the dissipation to be quantum. We also present an explicit experimental protocol for identifying truly quantum dephasing dissipation and lay the groundwork for studying more complex dissipative systems and finding optimal noise mitigating strategies.

13 pages, 7 figures. Close to final published version

References in corpus (10)

• 14-qubit entanglement: creation and coherence
• Correlated Charge Noise and Relaxation Errors in Superconducting Qubits
• Resolving catastrophic error bursts from cosmic rays in large arrays of superconducting qubits
• Reducing unitary and spectator errors in cross resonance with optimized rotary echoes
• Multiqubit Spectroscopy of Gaussian Quantum Noise
• Using an atom interferometer to infer gravitational entanglement generation
• Non-reciprocal quantum interactions and devices via autonomous feed-forward
• On the Significance of Interferometric Revivals for the Fundamental Description of Gravity
• Noise representations of open system dynamics
• Spectral characterization of non-Gaussian quantum noise: Keldysh approach and application to photon shot noise

Cited by in corpus (19)

• Bell-state generation for spin qubits via dissipative coupling
• Introduction to quantum non-reciprocal interactions: from non-Hermitian Hamiltonians to quantum master equations and quantum feedforward schemes
• On Markovianity and classicality in multilevel spin-boson models
• Fate of entanglement in magnetism under Lindbladian or non-Markovian dynamics and conditions for their transition to Landau-Lifshitz-Gilbert classical dynamics
• Solid-state platform for cooperative quantum dynamics driven by correlated emission
• Nonadiabatic transition paths from quantum jump trajectories
• Exponentially enhanced gravitationally induced entanglement between quantum systems with a two-phonon drive
• Surpassing spectator qubits with photonic modes and continuous measurement for Heisenberg-limited noise mitigation
• Precession-induced nonclassicality of the free induction decay of NV centers by a dynamical polarized nuclear spin bath
• Memory effects in multipartite systems coupled by non-diagonal dephasing mechanisms
• Quantifying environment non-classicality in dissipative open quantum dynamics
• Emergent disorder and sub-ballistic dynamics in quantum simulations of the Ising model using Rydberg atom arrays
• Unveiling the nonclassicality within quasi-distribution representations through deep learning
• Quantum distinguishability measures: projectors vs. states maximization
• Uncovering measurement-induced entanglement via directional adaptive dynamics and incomplete information
• Adaptively partitioned analog quantum simulation on near-term quantum computers: The nonclassical free-induction decay of NV centers in diamond
• Violation of Diagonal Non-Invasiveness: A Hallmark of Non-Classical Memory Effects
• Measurement and feedforward induced entanglement negativity transition
• Dynamics and Spectral Response of linear-quadratic optomechanical interaction: Effects of pure dephasing