Atomic excitation trapping in dissimilar chirally-coupled atomic arrays
- URL: http://arxiv.org/abs/2311.05906v2
- Date: Fri, 26 Jan 2024 15:17:07 GMT
- Title: Atomic excitation trapping in dissimilar chirally-coupled atomic arrays
- Authors: I Gusti Ngurah Yudi Handayana, Chun-Chi Wu, Sumit Goswami, Ying-Cheng
Chen, H. H. Jen
- Abstract summary: Atomic array coupled to a one-dimensional nanophotonic waveguide allows photon-mediated dipole-dipole interactions and nonreciprocal decay channels.
We study the atomic excitation dynamics and its transport property, specifically at an interface of dissimilar atomic arrays.
Our results can provide insights to nonequilibrium quantum dynamics in dissimilar arrays and shed light on confining and controlling quantum registers useful for quantum information processing.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Atomic array coupled to a one-dimensional nanophotonic waveguide allows
photon-mediated dipole-dipole interactions and nonreciprocal decay channels,
which hosts many intriguing quantum phenomena owing to its distinctive and
emergent quantum correlations. In this atom-waveguide quantum system, we
theoretically investigate the atomic excitation dynamics and its transport
property, specifically at an interface of dissimilar atomic arrays with
different interparticle distances. We find that the atomic excitation dynamics
hugely depends on the interparticle distances of dissimilar arrays and the
directionality of nonreciprocal couplings. By tuning these parameters, a
dominant excitation reflection can be achieved at the interface of the arrays
in the single excitation case. We further study two effects on the transport
property-of external drive and of single excitation delocalization over
multiple atoms, where we manifest a rich interplay between multi-site
excitation and the relative phase in determining the transport properties.
Finally, we present an intriguing trapping effect of atomic excitation by
designing multiple zones of dissimilar arrays. Similar to the single
excitations, multiple excitations are reflected from the array interfaces and
trapped as well, although complete trapping of many excitations together is
relatively challenging at long time due to a faster combined decay rate. Our
results can provide insights to nonequilibrium quantum dynamics in dissimilar
arrays and shed light on confining and controlling quantum registers useful for
quantum information processing.
Related papers
- Nonlinear dynamical Casimir effect and Unruh entanglement in waveguide QED with parametrically modulated coupling [83.88591755871734]
We study theoretically an array of two-level qubits moving relative to a one-dimensional waveguide.
When the frequency of this motion approaches twice the qubit resonance frequency, it induces parametric generation of photons and excitation of the qubits.
We develop a comprehensive general theoretical framework that incorporates both perturbative diagrammatic techniques and a rigorous master-equation approach.
arXiv Detail & Related papers (2024-08-30T15:54:33Z) - Steady-state phases and interaction-induced depletion in a
driven-dissipative chirally-coupled dissimilar atomic array [0.0]
We study the steady-state phases of atomic excitations under a weakly-driven condition of laser field.
We reveal an intricate role of the atom at the interface of the dissimilar array in determining the steady-state phases.
Our results can provide insights in the driven-dissipative quantum phases of atomic excitations with nonreciprocal couplings.
arXiv Detail & Related papers (2023-11-24T15:49:04Z) - Super- and subradiant dynamics of quantum emitters mediated by atomic
matter waves [0.0]
We explore cooperative dynamics of quantum emitters in an optical lattice that interact by radiating atomic matter waves.
We demonstrate directional super- and subradiance from a superfluid phase with tunable radiative phase lags.
We observe a coupling to collective bound states with radiation trapped at and between the emitters.
arXiv Detail & Related papers (2023-11-16T00:37:06Z) - Bound state of distant photons in waveguide quantum electrodynamics [137.6408511310322]
Quantum correlations between distant particles remain enigmatic since the birth of quantum mechanics.
We predict a novel kind of bound quantum state in the simplest one-dimensional setup of two interacting particles in a box.
Such states could be realized in the waveguide quantum electrodynamics platform.
arXiv Detail & Related papers (2023-03-17T09:27:02Z) - Tunable photon-mediated interactions between spin-1 systems [68.8204255655161]
We show how to harness multi-level emitters with several optical transitions to engineer photon-mediated interactions between effective spin-1 systems.
Our results expand the quantum simulation toolbox available in cavity QED and quantum nanophotonic setups.
arXiv Detail & Related papers (2022-06-03T14:52:34Z) - Tuning long-range fermion-mediated interactions in cold-atom quantum
simulators [68.8204255655161]
Engineering long-range interactions in cold-atom quantum simulators can lead to exotic quantum many-body behavior.
Here, we propose several tuning knobs, accessible in current experimental platforms, that allow to further control the range and shape of the mediated interactions.
arXiv Detail & Related papers (2022-03-31T13:32:12Z) - Tunable directional emission and collective dissipation with quantum
metasurfaces [62.997667081978825]
Subradiant excitations propagate through the atomic array with very long lifetimes.
We demonstrate that one can harness these excitations to obtain tunable directional emission patterns.
We also benchmark how these directional emission patterns translate into collective, anisotropic dissipative couplings.
arXiv Detail & Related papers (2021-07-01T14:26:33Z) - Waveguide quantum electrodynamics: collective radiance and photon-photon
correlations [151.77380156599398]
Quantum electrodynamics deals with the interaction of photons propagating in a waveguide with localized quantum emitters.
We focus on guided photons and ordered arrays, leading to super- and sub-radiant states, bound photon states and quantum correlations with promising quantum information applications.
arXiv Detail & Related papers (2021-03-11T17:49:52Z) - Quantum simulation with fully coherent dipole--dipole-interactions
mediated by three-dimensional subwavelength atomic arrays [0.0]
Quantum simulators employing cold atoms are among the most promising approaches to tackle quantum many-body problems.
Here, we propose to use a simple cubic three-dimensional array of atoms to produce an omnidirectional bandgap for light.
We show that it enables coherent, dissipation-free interactions between embedded impurities.
arXiv Detail & Related papers (2020-12-23T16:26:20Z) - Superradiant phase transition with cavity assisted dynamical spin-orbit
coupling [2.234476443495425]
We consider the cavity assisted dynamical spin-orbit coupling which comes from the combination of these two effects.
atom decay suppresses the singularity of the phase diagram and the nonlinear coupling can break the symmetric properties of the phase transition.
Our work provide the theoretical methods to research the rich quantum phenomena in this dynamic many-body systems.
arXiv Detail & Related papers (2020-12-18T08:17:00Z) - Controlling interactions between quantum emitters using atom arrays [0.0]
We investigate two-dimensional atomic arrays as a platform to modify the electromagnetic environment of individual quantum emitters.
We demonstrate that control over emission linewidths, resonant frequency shifts, and local enhancement of driving fields is possible due to strong dipole-dipole interactions within ordered, subwavelength atom configurations.
arXiv Detail & Related papers (2020-05-05T23:11:43Z)
This list is automatically generated from the titles and abstracts of the papers in this site.
This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.