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Preparation of entangled states by quantum Markov processes

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Kraus, B., Büchler, H. P., Diehl, S., Kantian, A., Micheli, A., Zoller, P.·2008·Physical Review A

Abstract

We investigate the possibility of using a dissipative process to prepare a quantum system in a desired state. We derive for any multipartite pure state a dissipative process for which this state is the unique stationary state and solve the corresponding master equation analytically. For certain states, such as the cluster states, we use this process to show that the jump operators can be chosen quasilocally, i.e. they act nontrivially only on a few, neighboring qubits. Furthermore, the relaxation time of this dissipative process is independent of the number of subsystems. We demonstrate the general formalism by considering arbitrary matrix-product states or projected entangled pair states. In particular, we show that the ground state of the Affleck-Kennedy-Lieb-Tasaki model can be prepared employing a quasi-local dissipative process.

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Metadata

Authors
Kraus, B., Büchler, H. P., Diehl, S., Kantian, A., Micheli, A., & Zoller, P.
Venue
Physical Review A
Published
2008-10-08
Volume
78
Issue
4
ISSN
  • 0556-2791 (ISSN-L)
  • 1050-2947
  • 1094-1622
OpenAlex
W2057368709
Cited by
760
References
30
FWCI
11.02
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Preparation of entangled states by quantum Markov processes. https://app.cochat.ai/papers/10.1103/physreva.78.042307
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Kraus, B., Büchler, H. P., Diehl, S., Kantian, A., Micheli, A., & Zoller, P. (2008). Preparation of entangled states by quantum Markov processes. Physical Review A. https://doi.org/10.1103/physreva.78.042307

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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