Ground state cooling of quantum systems via a one-shot measurement

Abstract

We prove that there exists a family of quantum systems that can be cooled to their ground states by a one-shot projective measurement on the ancillas coupled to these systems. Consequently, this proof gives rise to the conditions for achieving the one-shot measurement ground-state cooling (OSMGSC). We also propose a general procedure for finding unitary propagators and corresponding Hamiltonians to realize such cooling by means of inverse engineering technique.

arXiv comment5 pages, 4 figures

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Cited by in corpus (14)

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• Probabilistic Eigensolver with a Trapped-Ion Quantum Processor
• Measurement-induced cooling of a qubit in structured environments
• Phase space density limitation in laser cooling without spontaneous emission
• Refrigeration via purification through repeated measurements
• Measurement-induced nuclear spin polarization
• Optimizing measurement-based cooling by reinforcement learning
• Quantum state identification of qutrits via a nonlinear protocol
• Tunable Tradeoff between Quantum and Classical Computation via Nonunitary Zeno-like Dynamics
• Efficient nonclassical state preparation via generalized parity measurement
• Simultaneous cooling by measuring one ancillary system
• An almost deterministic cooling by measurements