2016/08/05 by Anil Kumar Chauhan, Asoka Biswas · 1 citation
Computer Science · Physics and Astronomy · #Adiabatic process #Atom (system on chip) #Atomic physics #Force Microscopy Techniques and Applications #Hamiltonian (control theory) #Laser #Mechanical and Optical Resonators #Mesoscopic physics #Optical cavity #Optomechanics #Physics #Quantum #Quantum Information and Cryptography #Quantum mechanics #Qubit #Swap (finance) #quant-ph
paper · pdf · doi:10.1080/09500340.2018.1542513
6 pages, 2 figures, submitted
arxiv created 2016/08/05 · arxiv updated 2018/11/06 · openalex publication_date 2018/11/07 · openalex created_date 2020/11/23 · openalex updated_date 2026/06/16
Tracing the dynamics of a quantum system using a mesoscopic device is an important topic of interest nowadays. Here we show how a mesoscopic mechanical oscillator can be used to steer the dynamics of a coupled two-atom system and thereby to implement a two-qubit universal gate. We have theoretically studied a generic hybrid atom-optomechanical system where two identical atoms in Λ configuration are trapped inside the cavity and the cavity mode mediates the interaction between the atoms and the mechanical oscillator. Adiabatic elimination of the lossy channels, namely, cavity decay and spontaneous emission, is adopted to obtain an effective Hamiltonian. This Hamiltonian is responsible for two-atom swap and SWAP gates, controlled by the position fluctuation of the oscillator. The validity of the proposal for successful implementation is assessed using presently available experimental parameters.