Precisely Timing Dissipative Quantum Information Processing

Michael James Kastoryano; Michael Marc Wolf; J. Eisert

doi:10.1103/PhysRevLett.110.110501

Precisely Timing Dissipative Quantum Information Processing

Michael James Kastoryano, Michael Marc Wolf, J. Eisert

Kvanteoptik

39 Citationer (Scopus)

Abstract

Dissipative engineering constitutes a framework within which quantum information processing protocols are powered by system-environment interaction rather than by unitary dynamics alone. This framework embraces noise as a resource and, consequently, offers a number of advantages compared to one based on unitary dynamics alone, e.g., that the protocols are typically independent of the initial state of the system. However, the time independent nature of this scheme makes it difficult to imagine precisely timed sequential operations, conditional measurements, or error correction. In this work, we provide a path around these challenges, by introducing basic dissipative gadgets which allow us to precisely initiate, trigger, and time dissipative operations while keeping the system Liouvillian time independent. These gadgets open up novel perspectives for thinking of timed dissipative quantum information processing. As an example, we sketch how measurement-based computation can be simulated in the dissipative setting.

Originalsprog	Engelsk
Artikelnummer	110501
Tidsskrift	Physical Review Letters
Vol/bind	110
Udgave nummer	11
ISSN	0031-9007
DOI	https://doi.org/10.1103/PhysRevLett.110.110501
Status	Udgivet - 11 mar. 2013

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10.1103/PhysRevLett.110.110501

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Precisely Timing Dissipative Quantum Information Processing

Abstract

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