title: Quantum phase control of entanglement.
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.
authors.affiliation: Michigan Center for Theoretical Physics & FOCUS Center, Department of Physics, University of Michigan, Ann Arbor, MI 48109, USA. vsmalinovsky@magiqtech.com
authors.forename: Vladimir S
authors.initials: VS
authors.lastname: Malinovsky
authors.forename: Ignacio R
authors.initials: IR
authors.lastname: Sola