Measuring and engineering entropy and spin squeezing in weakly linked Bose-Einstein condensates

Bibliographic Details
Title: Measuring and engineering entropy and spin squeezing in weakly linked Bose-Einstein condensates
Authors: Cattani, F., Gross, C., Oberthaler, M. K., Ruostekoski, J.
Source: New J. Phys. 15, 063035 (2013)
Publication Year: 2013
Collection: Condensed Matter
Quantum Physics
Subject Terms: Condensed Matter - Quantum Gases, Quantum Physics
More Details: We propose a method to infer the single-particle entropy of bosonic atoms in an optical lattice and to study the local evolution of entropy, spin squeezing, and entropic inequalities for entanglement detection in such systems. This method is based on experimentally feasible measurements of non-nearest-neighbour coherences. We study a specific example of dynamically controlling atom tunneling between selected sites and show that this could potentially also improve the metrologically relevant spin squeezing.
Document Type: Working Paper
DOI: 10.1088/1367-2630/15/6/063035
Access URL: http://arxiv.org/abs/1302.3040
Accession Number: edsarx.1302.3040
Database: arXiv
More Details
DOI:10.1088/1367-2630/15/6/063035