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

P. V. Pyshkin; Da-Wei Luo; J. Q. You; Lian-Ao Wu

doi:10.1103/PhysRevA.93.032120

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

Quantum Physics 2016-03-23 v1

Authors: P. V. Pyshkin , Da-Wei Luo , J. Q. You , Lian-Ao Wu

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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.

Keywords

ground state cooling one-shot measurement quantum systems projective measurement ancillas inverse engineering unitary propagators

Cite

@article{arxiv.1503.04133,
  title  = {Ground state cooling of quantum systems via a one-shot measurement},
  author = {P. V. Pyshkin and Da-Wei Luo and J. Q. You and Lian-Ao Wu},
  journal= {arXiv preprint arXiv:1503.04133},
  year   = {2016}
}

Comments

5 pages, 4 figures

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