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Title: Heralded processes on continuous-variable spaces as quantum maps

Heralding processes, which only work when a measurement on a part of the system give the good result, are particularly interesting for continuous-variables. They permit non-Gaussian transformations that are necessary for several continuous-variable quantum information tasks. However if maps and quantum process tomography are commonly used to describe quantum transformations in discrete-variable space, they are much rarer in the continuous-variable domain. Also, no convenient tool for representing maps in a way more adapted to the particularities of continuous variables have yet been explored. In this paper we try to fill this gap by presenting such a tool.
Authors:
 [1] ;  [2] ;  [3] ;  [4] ;  [5]
  1. Laboratoire Charles Fabry, Institut d'Optique, Université Paris-Sud and CNRS, F-91127, Palaiseau, France and Centre for Quantum Dynamics and Centre for Quantum Computation and Communication Technology, Griffith University, Brisbane 4111 (Australia)
  2. Laboratoire Charles Fabry, Institut d'Optique, Université Paris-Sud and CNRS, F-91127, Palaiseau, France and Dipartimento di Fisica, Sapienza Università di Roma, piazzale Aldo Moro 5, I-00185 Rome (Italy)
  3. Laboratoire Charles Fabry, Institut d'Optique, Université Paris-Sud and CNRS, F-91127, Palaiseau (France)
  4. Laboratoire Charles Fabry, Institut d'Optique, Université Paris-Sud and CNRS, F-91127, Palaiseau, France and Clarendon Laboratory, Department of Physics, University of Oxford, OX1 3PU (United Kingdom)
  5. Laboratoire Charles Fabry, Institut d'Optique, Université Paris-Sud and CNRS, F-91127, Palaiseau, France and Institut Universitaire de France, 103 boulevard St. Michel, 75005, Paris (France)
Publication Date:
OSTI Identifier:
22390695
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1633; Journal Issue: 1; Conference: 11. International Conference on Quantum Communication, Measurement and Computation, Vienna (Austria), 30 Jul - 3 Aug 2012; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; QUANTUM INFORMATION; QUANTUM MECHANICS; SPACE; TOMOGRAPHY; TRANSFORMATIONS