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Uniqueness of Entanglement Measure and Thermodynamics
Vlatko Vedral, Elham Kashefi
We apply the axiomatic approach to thermodynamics presented by Giles to derive a unique measure of entanglement for bi-partite pure states. This implies that local manipulations of…
Entanglement Concentration Using Quantum Statistics
N. Paunkovic, Y. Omar, S. Bose +1
We propose an entanglement concentration scheme which uses only the effects of quantum statistics of indistinguishable particles. This establishes the fact that useful quantum info…
A note on quantum one-way permutations
Elham Kashefi, Harumichi Nishimura, Vlatko Vedral
We discuss the question of the existence of quantum one-way permutations. First, we prove the equivalence between inverting a permutation and that of constructing a polynomial size…
Reply to `Singularities of the mixed state phase'
J. Anandan, E. Sjöqvist, A. K. Pati +4
The only difference between Bhandari's viewpoint [quant-ph/0108058] and ours [Phys. Rev. Lett. 85, 2845 (2000)] is that our phase is defined modulo , whereas Bhandari argues th…
A Comparison of Quantum Oracles
Elham Kashefi, Adrian Kent, Vlatko Vedral +1
A standard quantum oracle for a general function is defined to act on two input states and return two outputs, with inputs and ($i,j \in…
Geometric phases of mesoscopic spin in Bose-Einstein condensates
I. Fuentes-Guridi, J. Pachos, S. Bose +2
We propose a possible scheme for generating spin-J geometric phases using a coupled two-mode Bose-Einstein condensate (BEC). First we show how to observe the standard Berry phase u…