Quantum state engineering by periodical two-step modulation in atomic system

Abstract

By periodical two-step modulation, we demonstrate that the dynamics of multilevel system can still evolve even in multiple large detunings regime, and provide the effective Hamiltonian (of interest) for this system. We then illustrate this periodical modulation in quantum state engineering, including achieving direct transition from the ground state to the Rydberg state or the desired superposition of two Rydberg states without satisfying two-photon resonance condition, switching between Rydberg blockade regime and Rydberg antiblockade regime, stimulating distinct atomic transitions by the same laser field, and implementing selective transitions in the same multilevel system. Particularly, it is robust against perturbation of control parameters. Another advantage is that the waveform of laser field has simple square-wave form which is readily implemented in experiments. Thus, it offers us a novel method of quantum state engineering in quantum information processing.

16 pages, 12 figures

References in corpus (17)

• Topological characterization of periodically-driven quantum systems
• Many-body localization in periodically driven systems
• Coherent Excitation Transfer in a Spin Chain of Three Rydberg Atoms
• Multiterminal Conductance of a Floquet Topological Insulator
• Tunable Spin-Orbit Coupling via Strong Driving in Ultracold Atom Systems
• Fractional Quantum Hall State in Coupled Cavities
• Modulated Floquet Topological Insulators
• Floquet engineering of long-range p-wave superconductivity
• Local optical control of the resonant dipole-dipole interaction between Rydberg atoms
• Stückelberg interference in a superconducting qubit under periodic latching modulation
• Floquet control of quantum dissipation in spin chains
• Cavity assisted single- and two-mode spin-squeezed states via phase-locked atom-photon coupling
• Arbitrary Dicke-State Control of Symmetric Rydberg Ensembles
• Periodically Driven Three-Level Systems
• Long time asymptotic state of periodically driven open quantum systems
• Adiabatic rapid passage two-photon excitation of a Rydberg atom
• Non-Markovian dynamics of few emitters in a laser-driven cavity