Implementation Of Multi-part Quantum Entanglement With Adiabatic Passage

Quantum entanglement is a distinct feature for quantum physics.It can not only provide the possibility for testing quantum mechanics against a local hidden-variable theory,but also is an important resource in quantum information science.Multi-party and multi-level entangled states which have various structures possess some specific features which two-particle quantum entangled states don't have.A singlet state which is a special type of entanglement with total spin being zero can be applied for quantum information processing in decoherence-free spaces.An N-particle-N-level singlet state is a multi-party-multi-level entangle state and can be used for solving "liar detection"problem,a kind of quantum problem with no classical solution.Cavity quantum electrodynamics(QED)system and ion-trapped systems,which play an important role in quantum information science,are two popular tools for quantum information processing,quantum computation and quantum simulation.In addition,adiabatic-passage technique is a powerful tool to generate quantum entangled states.Compared with resonance technology,nonresonance technology,etc,it is insensitive to fluctuation of experimental parameters,so it is widely applied.In this paper,we mainly discuss the generation of Multi-party entangled states via adiabatic-passage technique based on optical cavity systems or ion-trapped systems.,The main content of the paper comprises:1)we propose a scheme of generating a three-atom GHZ state via shortcut to adiabaticity in cavity QED.2)The scheme for preparing a three-qutrit singlet state via adiabatic passage in an ion-trapped system is suggested.3)We design a protocol for preparing an N-quNit singlet state with adiabatic passage,in which only a cavity mode is needed to act as a quantum media.