Coherent destruction of tunneling in a lattice array under selective in-phase modulations

Abstract

We explore the coherent destruction of tunneling (CDT) in a lattice array under selective in-phase harmonic modulations, in which some selected lattice sites are driven by in-phase harmonic oscillating fields and other lattice sites are undriven. Due to the occurrence of CDT, if the driving amplitude $A$ and the driving frequency $\omega$ are tuned to satisfy the zeroth-order Bessel function $J_0(A/\omega )=0$, the driven lattice sites are approximately decoupled with the undriven lattice sites. The CDT even takes place in lattice systems with high-order couplings between non-nearest lattice sites. By using the CDT, we propose a scheme for realizing directed transport of a single particle. It is possible to observe the CDT in the engineered optical waveguide array, which provides a new opportunity for controlling light propagation and designing switch-like couplers.

8 pages, 8 figures

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Cited by in corpus (9)

• Nonlinear switching and solitons in PT-symmetric photonic systems
• Pseudo Parity-Time Symmetry in Optical Systems
• Coherent Destruction of Tunneling and Dark Floquet State
• Coherent destruction of tunneling in a lattice array with controllable boundary
• Coherent control of dissipative dynamics in a periodically driven lattice array
• Resonant edge-site pumping of polaritonic Su-Schrieffer-Heeger lattices
• Plateau dynamics with quantized oscillations of a strongly driven qubit
• Coherent control of spin tunneling in a spin-orbit coupled bosonic triple well
• Directed tunneling of a prescribed number of dipolar bosons in shaken triple-well potentials