Collectively enhanced ground-state cooling in subwavelength atomic arrays
- URL: http://arxiv.org/abs/2405.18482v1
- Date: Tue, 28 May 2024 18:00:05 GMT
- Title: Collectively enhanced ground-state cooling in subwavelength atomic arrays
- Authors: Oriol Rubies-Bigorda, Raphael Holzinger, Ana Asenjo-Garcia, Oriol Romero-Isart, Helmut Ritsch, Stefan Ostermann, Carlos Gonzalez-Ballestero, Susanne F. Yelin, Cosimo C. Rusconi,
- Abstract summary: We present a sideband cooling scheme for atoms trapped in subwavelength arrays.
We derive an effective master equation for the atomic motion by adiabatically eliminating the internal degrees of freedom of the atoms.
This approach could be utilized for future quantum technologies based on dense ensembles of emitters.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Subwavelength atomic arrays in free space are becoming a leading platform for exploring emergent many-body quantum phenomena. These arrays feature strong light-induced dipole-dipole interactions, resulting in subradiant collective resonances characterized by narrowed linewidths. In this work, we present a sideband cooling scheme for atoms trapped in subwavelength arrays that utilizes these narrow collective resonances. We derive an effective master equation for the atomic motion by adiabatically eliminating the internal degrees of freedom of the atoms, and validate its prediction with numerical simulations of the full system. Our results demonstrate that subradiant resonances enable the cooling of ensembles of atoms to temperatures lower than those achievable without dipole interactions, provided the atoms have different trap frequencies. Remarkably, narrow collective resonances can be sideband-resolved even when the individual atomic transition is not. In such scenarios, ground state cooling becomes feasible solely due to light-induced dipole-dipole interactions. This approach could be utilized for future quantum technologies based on dense ensembles of emitters, and paves the way towards harnessing many-body cooperative decay for enhanced motional control.
Related papers
- Electrically tunable quantum interference of atomic spins on surfaces [43.73138793116028]
We demonstrate electrical control of quantum interference using atomic spins on an insulating film in a scanning tunneling microscope.<n>We modulate the atomically-confined magnetic interaction between the probe tip and surface atoms with a strong electric field, and drive the spin state rapidly through the energy-level anticrossing.<n>Results open new avenues for all-electrical quantum manipulation in spin-based quantum processors.
arXiv Detail & Related papers (2025-06-01T14:28:36Z) - Collective emission and selective-radiance in atomic clouds and arrays coupled to a microring resonator [0.0]
atoms can interact with each other through light-induced dipole-dipole interactions mediated by free space and through the resonator whispering-gallery modes.<n>The differing characteristics and mismatched wavenumbers of these modes give rise to complex dynamics and provide new opportunities for controlling light-matter interactions.<n>We explore these phenomena in the context of an experimentally realized atom cloud and study the potential of the proposed sub-wavelength atom arrays.
arXiv Detail & Related papers (2025-03-27T03:20:47Z) - Effects of finite trapping on the decay, recoil, and decoherence of dark states of quantum emitter arrays [0.0]
We study the effects of finite trap strength on the long-lived subradiant states for two, three, and many atoms in a 1D waveguide or free space.
In relatively tight traps, the decay of a shared electronic excitation imparts energy to the atoms, which is proportional to the lifetime of the excited state.
Our findings provide insights for the behavior of quantum memories and atom array experiments.
arXiv Detail & Related papers (2025-02-14T01:27:45Z) - Strongly subradiant states in planar atomic arrays [39.58317527488534]
We study collective dipolar oscillations in finite planar arrays of quantum emitters in free space.
We show that the external coupling between the collective states associated with the symmetry of the array and with the quasi-flat dispersion of the corresponding infinite lattice plays a crucial role in the boost of their radiative lifetime.
arXiv Detail & Related papers (2023-10-10T17:06:19Z) - Topologically protected subradiant cavity polaritons through linewidth
narrowing enabled by dissipationless edge states [0.9558392439655011]
Polaritons with narrow linewidth and long lifetime are appealing in applications such as quantum sensing and storage.
Inheriting from the topologically protected properties of edge states, the subradiance of cavity polaritons can be preserved in the disordered atom mirror.
arXiv Detail & Related papers (2023-08-08T14:20:35Z) - Thermal masses and trapped-ion quantum spin models: a self-consistent approach to Yukawa-type interactions in the $λ\!φ^4$ model [44.99833362998488]
A quantum simulation of magnetism in trapped-ion systems makes use of the crystal vibrations to mediate pairwise interactions between spins.
These interactions can be accounted for by a long-wavelength relativistic theory, where the phonons are described by a coarse-grained Klein-Gordon field.
We show that thermal effects, which can be controlled by laser cooling, can unveil this flow through the appearance of thermal masses in interacting QFTs.
arXiv Detail & Related papers (2023-05-10T12:59:07Z) - 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) - Quantum emulation of the transient dynamics in the multistate
Landau-Zener model [50.591267188664666]
We study the transient dynamics in the multistate Landau-Zener model as a function of the Landau-Zener velocity.
Our experiments pave the way for more complex simulations with qubits coupled to an engineered bosonic mode spectrum.
arXiv Detail & Related papers (2022-11-26T15:04:11Z) - Enhanced dark-state sideband cooling in trapped atoms via
photon-mediated dipole-dipole interactions [4.915587669065746]
We present an enhanced dark-state sideband cooling in trapped atoms utilizing photon-mediated dipole-dipole interactions among them.
By placing the atoms at the magic interparticle distances, we manifest an outperformed cooling behavior in the target atom.
Our results provide insights to subrecoil cooling of atoms with collective and light-induced long-range dipole-dipole interactions, and pave the way toward implementing genuine quantum operations in multiple quantum registers.
arXiv Detail & Related papers (2022-10-12T13:33:20Z) - Radiative Properties of an Artificial Atom coupled to a Josephson
Junction Array [0.0]
We study the radiative properties of an artificial atom coupled to a multimode cavity formed by an array of Josephson junctions.
Introducing a tunable coupling element between the atom and the array, we demonstrate that such a system can exhibit a crossover from a perturbative to non-perturbative regime of light-matter interaction.
arXiv Detail & Related papers (2022-05-27T17:40:37Z) - Quantum Hall states for Rydberg atoms with laser-assisted dipole-dipole
interactions [1.9662978733004601]
We propose a novel scheme with laser-assisted dipole-dipole interactions to realize synthetic magnetic field for Rydberg atoms in a two-dimensional array configuration.
This work opens an avenue for the realization of the highly-sought-after bosonic topological orders using Rydberg atoms.
arXiv Detail & Related papers (2022-04-14T16:28:07Z) - 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) - 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) - Quantum chaos driven by long-range waveguide-mediated interactions [125.99533416395765]
We study theoretically quantum states of a pair of photons interacting with a finite periodic array of two-level atoms in a waveguide.
Our calculation reveals two-polariton eigenstates that have a highly irregular wave-function in real space.
arXiv Detail & Related papers (2020-11-24T07:06:36Z) - Waveguide Bandgap Engineering with an Array of Superconducting Qubits [101.18253437732933]
We experimentally study a metamaterial made of eight superconducting transmon qubits with local frequency control.
We observe the formation of super- and subradiant states, as well as the emergence of a polaritonic bandgap.
The circuit of this work extends experiments with one and two qubits towards a full-blown quantum metamaterial.
arXiv Detail & Related papers (2020-06-05T09:27:53Z) - 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) - Waveguide Quantum Electrodynamics with Giant Superconducting Artificial
Atoms [40.456646238780195]
We employ an alternative architecture that realizes a giant atom by coupling small atoms to a waveguide at multiple, but well separated, discrete locations.
Our realization of giant atoms enables tunable atom-waveguide couplings with large on-off ratios and a coupling spectrum that can be engineered by device design.
arXiv Detail & Related papers (2019-12-27T16:45:59Z)
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.