Criticality of environmental information obtainable by dynamically controlled quantum probes

Abstract

A universal approach to decoherence control combined with quantum estimation theory reveals a critical behavior, akin to a phase transition, of the information obtainable by a qubit probe concerning the memory time of environmental fluctuations. This criticality emerges only when the probe is subject to dynamical control. It gives rise to a sharp transition between two dynamical phases characterized by either a short or long memory time compared to the probing time. This phase-transition of the environmental information is a fundamental feature that facilitates the attainment of the highest estimation precision of the environment memory-time and the characterization of probe dynamics.

3 pages, 4 figures

References in corpus (25)

• High-sensitivity diamond magnetometer with nanoscale resolution
• Non-Markovian dynamics in open quantum systems
• Quantum Non-Markovianity: Characterization, Quantification and Detection
• Dynamical decoupling and noise spectroscopy with a superconducting flux qubit
• Universal dynamical decoupling of a single solid-state spin from a spin bath
• Fault-Tolerant Quantum Dynamical Decoupling
• Spectroscopy of Surface-Induced Noise Using Shallow Spins in Diamond
• A review of progress in the physics of open quantum systems: theory and experiment
• Optimal Dynamical Decoherence Control of a Qubit
• Minimal universal quantum heat machine
• Qubit noise spectroscopy for non-Gaussian dephasing environments
• Reversible state transfer between superconducting qubits and atomic ensembles
• Optimal pulse spacing for dynamical decoupling in the presence of a purely-dephasing spin-bath
• Universal dynamical decoherence control of noisy single-and multi-qubit systems
• Local observation of antibunching in a trapped Fermi gas
• Environmentally induced Quantum Dynamical Phase Transition in the spin swapping operation
• Characterization of dynamical phase transitions in quantum jump trajectories beyond the properties of the stationary state
• Direct Measurement of the System-Environment Coupling as a Tool For Understanding Decoherence and Dynamical Decoupling
• Preventing Multipartite Disentanglement by Local Modulations
• Entangled quantum probes for dynamical environmental noise
• Maximizing information on the environment by dynamically controlled qubit probes
• Optimized dynamical control of state transfer through noisy spin chains
• Optimizing inhomogeneous spin ensembles for quantum memory
• Thermal Baths as Quantum Resources: More Friends than Foes?
• Determining the squeezing in multimode fields using nonlocal quantum probes

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• Quantum magnetometry using two-stroke thermal machines
• Effects of counter-rotating-wave terms on the noisy frequency estimation
• Maximizing information obtainable by quantum sensors through the Quantum Zeno Effect
• Parameter estimation by decoherence in the double-slit experiment
• Masked states of an atom coupled to a standing-wave cavity mode
• Metrology of weak quantum perturbations
• Manifestation of critical effects in environmental parameter estimation using a quantum sensor under dynamical control