Abstract
A method of phase control of entanglement in two-qubit systems is proposed. We show that by changing a relative phase of the pulses that drive the transitions in a two-qubit system with closed-loop couplings, one can control entanglement at will. The method relies on adiabatic dynamics via time-delayed pulse sequences and can be implemented with both resonant and nonresonant transitions.
- Received 26 August 2003
DOI:https://doi.org/10.1103/PhysRevLett.93.190502
©2004 American Physical Society