Zobrazeno 1 - 10
of 136
pro vyhledávání: '"LU Xiao-jing"'
Publikováno v:
Quantum 6, 740 (2022)
We design faster-than-adiabatic state transfers (switching of quantum numbers) in time-dependent coupled-oscillator Hamiltonians. The manipulation to drive the process is found using a two-dimensional invariant recently proposed in S. Simsek and F. M
Externí odkaz:
http://arxiv.org/abs/2203.04388
Shuttling protocols designed by shortcut-to-adiabaticity techniques may suffer from perturbations and imperfect implementations. We study the motional excitation of a single ion shuttled in harmonic traps with time-dependent, "systematic" oscillatory
Externí odkaz:
http://arxiv.org/abs/2201.07555
Publikováno v:
Chinese Journal of Agrometeorology. Jul2024, Vol. 45 Issue 7, p689-700. 12p.
We find the noise sensitivities (i.e., the quadratic terms of the energy with respect to the perturbation of the noise) of a particle shuttled by an optical lattice that moves according to a shortcut-to-adiabaticity transport protocol. Noises affecti
Externí odkaz:
http://arxiv.org/abs/2002.03951
Publikováno v:
Phys. Rev. A 97, 053402(2018)
We investigate the excitation of a quantum particle shuttled in a harmonic trap with weak springconstant colored noise. The Ornstein-Uhlenbeck model for the noise correlation function describes a wide range of possible noises, in particular for short
Externí odkaz:
http://arxiv.org/abs/1805.02054
Population transfer in a superconducting qutrit via shortcut to adiabaticity with optimized drivings
Publikováno v:
In Optics Communications 15 October 2021 497
We investigate the effect of slow spring-constant drifts of the trap used to shuttle two ions of different mass. We design transport protocols to suppress or mitigate the final excitation energy by applying invariant-based inverse engineering, pertur
Externí odkaz:
http://arxiv.org/abs/1502.01430
We theoretically investigate the motional excitation of a single ion caused by spring-constant and position uctuations of a harmonic trap during trap shuttling processes. A detailed study of the sensitivity on noise for several transport protocols an
Externí odkaz:
http://arxiv.org/abs/1404.4257
Combining invariant-based inverse engineering, perturbation theory, and Optimal Control Theory, we design fast, transitionless expansions of cold neutral atoms or ions in Gaussian anharmonic traps. Bounding the possible trap frequencies and using a "
Externí odkaz:
http://arxiv.org/abs/1401.1352
Publikováno v:
Phys. Rev. A 88, 033406 (2013)
We design, by invariant-based inverse engineering, driving fields that invert the population of a two-level atom in a given time, robustly with respect to dephasing noise and/or systematic frequency shifts. Without imposing constraints, optimal proto
Externí odkaz:
http://arxiv.org/abs/1305.6127