Laser Physics

, Volume 20, Issue 5, pp 1197–1202

Multi-pass classical vs. quantum strategies in lossy phase estimation

Quantum Information Science

Abstract

The use of classical multiple-pass approach for phase estimation which mimics the behavior of the N00N states, is compared with quantum techniques. It is shown that in the presence of losses its performance is significantly worse than the one of the optimal quantum strategy.

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Copyright information

© Pleiades Publishing, Ltd. 2010

Authors and Affiliations

  1. 1.Institute of PhysicsNicolaus Copernicus UniversityToruńPoland
  2. 2.Faculty of PhysicsUniversity of WarsawWarsawPoland

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