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Generalization of t...
Generalization of the geometric phase to completely positive maps
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- Ericsson, Marie (author)
- Uppsala universitet,Institutionen för kvantkemi
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- Sjöqvist, Erik (author)
- Uppsala universitet,Institutionen för kvantkemi
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- Brännlund, Johan (author)
- Stockholm University, SCFAB, Fysikum, Sweden
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- Oi, Daniel K.L. (author)
- Centre for Quantum Computation, Clarendon Laboratory, University of Oxford, UK
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- Pati, Arun K. (author)
- Institute of Physics, Bhubaneswar, India
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(creator_code:org_t)
- 2003
- 2003
- English.
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In: Physical Review A. Atomic, Molecular, and Optical Physics. - 1050-2947 .- 1094-1622. ; 67:2, s. 020101(R)-
- Related links:
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http://arxiv.org/abs...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- We generalize the notion of relative phase to completely positive maps with known unitary representation, based on interferometry. Parallel transport conditions that define the geometric phase for such maps are introduced. The interference effect is embodied in a set of interference patterns defined by flipping the environment state in one of the two paths. We show for the qubit that this structure gives rise to interesting additional information about the geometry of the evolution defined by the CP map.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Keyword
- Geometric phase
- completely positive maps
- mixed quantum states
- Physics
- Fysik
- Fysik
- Physics
Publication and Content Type
- ref (subject category)
- art (subject category)
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