6533b855fe1ef96bd12b074b

RESEARCH PRODUCT

Quantum Nondemolition Measurement and Quantum State Manipulation in Two Dimensional Trapped Ion

Anna NapoliSabrina ManiscalcoAntonino MessinaWang Kai-ge

subject

Quantum nondemolition measurementPhysicsSuperposition principleRabi cycleQuantum stateQuantum mechanicsCavity quantum electrodynamicsCoherent statesTrapped ion quantum computerRabi frequency

description

An extension of QNDmeasuremen t of the vibrational energy of the trapped ion from one dimensional case to the bidimensional one is presented. Our approach exploits the fixed phase difference existing between the two orthogonal and appropriately configured classical laser beams determining the vibronic coupling. We in fact show that this phase difference may play the role of an adjustable external parameter which allows to optimize the measurement scheme itself in terms of both precision and sensitivity. Our proposal provides a cooling method for the trapped ion from the vibrational thermal state. Due to the coherent superposition of two sub Rabi oscillations, the Rabi frequency degeneration and offset may occur in this model. This provides a possibility to generate various entangled superposition of Fock states, pair coherent state and entangled pair coherent states.

yearjournalcountryeditionlanguage
2001-01-01
https://doi.org/10.1007/3-540-45409-8_3