Speed of qubit states during thermalisation

Abstract

Classifying quantum states usually demands to observe properties such as the amount of correlation at one point in time. Further insight may be gained by inspecting the dynamics in a given evolution scheme. Here we attempt such a classification looking at single-qubit and two-qubit states at the start of thermalisation with a heat bath. The speed with which the evolution starts is influenced by quantum aspects of the state, however, such signatures do not allow for a systematic classification.

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• Individual quantum probes for optimal thermometry
• Single-qubit thermometry
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Cited by in corpus (10)

• Action quantum speed limits
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• Non-Markovian temperature sensing
• Harnessing coherence generation for precision single- and two-qubit quantum thermometry
• Quantum thermometry for ultralow temperatures using probe and ancilla qubit chains
• Quantum information flow in impurity qubits interacting with Bose-Bose mixtures
• Single-qubit probes for temperature estimation in the presence of collective baths
• Quantum metrology of a structured reservoir
• Configuration-dependent precision in magnetometry and thermometry using multi-qubit quantum sensors
• Optimal strategies for transient and equilibrium quantum thermometry using Gaussian and non-Gaussian probes