One-Axis Twisting as a Method of Generating Many-Body Bell Correlations
Marcin Płodzień, Maciej Lewenstein, Emilia Witkowska, Jan Chwedeńczuk
Abstract
We demonstrate that the one-axis twisting (OAT), a versatile method of creating nonclassical states of bosonic qubits, is a powerful source of many-body Bell correlations. We develop a fully analytical and universal treatment of the process, which allows us to identify the critical time at which the Bell correlations emerge and predict the depth of Bell correlations at all subsequent times. Our findings are illustrated with a highly nontrivial example of the OAT dynamics generated using the Bose-Hubbard model.
Topics & Concepts
PhysicsStatistical physicsQubitBell stateQuantum mechanicsTheoretical physicsClassical mechanicsQuantumQuantum many-body systemsCold Atom Physics and Bose-Einstein CondensatesQuantum Information and Cryptography