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Detection of Geometric Phases in Superconducting Nanocircuits
Giuseppe Falci, Rosario Fazio, G. Massimo Palma +2
When a quantum mechanical system undergoes an adiabatic cyclic evolution it acquires a geometrical phase factor in addition to the dynamical one. This effect has been demonstrated…
Remote information concentration using a bound entangled state
Mio Murao, Vlatko Vedral
Remote information concentration, the reverse process of quantum telecloning, is presented. In this scheme, quantum information originally from a single qubit, but now distributed…
Proposal for measurment of harmonic oscillator Berry phase in ion traps
I. Fuentes-Guridi, S. Bose, V. Vedral
We propose a scheme for measuring the Berry phase in the vibrational degree of freedom of a trapped ion. Starting from the ion in a vibrational coherent state we show how to revers…
Local Distinguishability of Multipartite Orthogonal Quantum States
Jonathan Walgate, Anthony J. Short, Lucien Hardy +1
We consider one copy of a quantum system prepared in one of two orthogonal pure states, entangled or otherwise, and distributed between any number of parties. We demonstrate that i…
Entangling Atoms and Ions in Dissipative Environments
A. Beige, S. Bose, D. Braun +4
Quantum information processing rests on our ability to manipulate quantum superpositions through coherent unitary transformations, and to establish entanglement between constituent…
Geometric phases for mixed states in interferometry
Erik Sjöqvist, Arun K. Pati, Artur Ekert +4
We provide a physical prescription based on interferometry for introducing the total phase of a mixed state undergoing unitary evolution, which has been an elusive concept in the p…