Blind spots between quantum states

Details Blind spots between quantum states Blind spots between quantum states

2009-05-12

arxiv.org/abs/0905.1900v2

New J. Phys. 11 113044 (2009)

Physics

Quantum Physics

4 figures

Scientific paper

10.1088/1367-2630/11/11/113044

The overlap of a large quantum state with its image, under tiny translations, oscillates swiftly. We here show that complete orthogonality occurs generically at isolated points. Decoherence, in the Markovian approximation, lifts the correlation minima from zero much more quickly than the Wigner function is smoothed into a positive phase space distribution. In the case of a superposition of coherent states, blind spots depend strongly on positions and amplitudes of the components, but they are only weakly affected by relative phases and the various degrees and directions of squeezing. The blind spots for coherent state triplets are special in that they lie close to an hexagonal lattice: Further superpositions of translated triplets, specified by nodes of one of the sublattices, are quasi-orthogonal to the original triplet and to any state, likewise constructed on the other sublattice.

Affiliated with

Also associated with

No associations

Rating

Blind spots between quantum states does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Blind spots between quantum states, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Blind spots between quantum states will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-337624