All Outputs (77)

Dephasing of ultracold cesium 80D5/2-Rydberg electromagnetically induced transparency (2023)
Journal Article

We study Rydberg electromagnetically induced transparency (EIT) of a cascade three-level atom involving 80D5/2 state in a strong interaction regime employing a cesium ultracold cloud. In our experiment, a strong coupling laser couples 6P3/2 to 80D5/2... Read More about Dephasing of ultracold cesium 80D5/2-Rydberg electromagnetically induced transparency.

Dephasing of ultracold cesium 80í µí°· 5/2 -Rydberg Electromagnetically Induced Transparency (2023)
Journal Article

We study Rydberg electromagnetically induced transparency (EIT) of a cascade three-level atom involving 80í µí°· 5/2 state in a strong interaction regime employing a cesium ultracold cloud. In our experiment, a strong coupling laser couples 6í µí±ƒ 3... Read More about Dephasing of ultracold cesium 80í µí°· 5/2 -Rydberg Electromagnetically Induced Transparency.

Facilitation-Induced Transparency and Single-Photon Switch with Dual-Channel Rydberg Interactions (2023)
Journal Article

We investigate facilitation-induced transparency (FIT) enabled by strong and long-range Rydberg atom interactions between two spatially separated optical channels. In this setting, the resonant two-photon excitation of Rydberg states in a target chan... Read More about Facilitation-Induced Transparency and Single-Photon Switch with Dual-Channel Rydberg Interactions.

Superradiance-induced multistability in one-dimensional driven Rydberg lattice gases (2022)
Journal Article

We study steady-state phases of a one-dimensional array of Rydberg atoms coupled by a microwave (MW) field where the higher-energy Rydberg state decays to the lower-energy one via single-body and collective (superradiant) decay. Using mean-field appr... Read More about Superradiance-induced multistability in one-dimensional driven Rydberg lattice gases.

A multi-band atomic candle with microwave-dressed Rydberg atoms (2022)
Journal Article

Stabilizing important physical quantities to atom-based standards lies at the heart of modern atomic, molecular and optical physics, and is widely applied to the field of precision metrology. Of particular importance is the atom-based microwave field... Read More about A multi-band atomic candle with microwave-dressed Rydberg atoms.

Observation of collectivity enhanced magnetoassociation of 6Li in the quantum degenerate regime (2022)
Journal Article

The association process of Feshbach molecules is well described by a Landau-Zener (LZ) transition above the Fermi temperature, such that two-body physics dominates the dynamics. However, using 6Li atoms and the associated Feshbach resonance at B r =... Read More about Observation of collectivity enhanced magnetoassociation of 6Li in the quantum degenerate regime.

Observation of collectivity enhanced magnetoassociation of 6 Li in the quantum degenerate regime (2022)
Journal Article

The association process of Feshbach molecules is well described by a Landau-Zener transition above the Fermi temperature, such that two-body physics dominates the dynamics. However, using 6 Li atoms and the associated Feshbach resonance at B r = 834.... Read More about Observation of collectivity enhanced magnetoassociation of 6 Li in the quantum degenerate regime.

Single Temporal-Pulse-Modulated Parameterized Controlled-Phase Gate for Rydberg Atoms (2022)
Journal Article

We propose an adiabatic protocol for implementing a controlled-phase gate CZθ with continuous θ of neutral atoms through a symmetrical two-photon excitation process via the second resonance line, 6P in 87Rb, with a single-temporal-modulation-coupling... Read More about Single Temporal-Pulse-Modulated Parameterized Controlled-Phase Gate for Rydberg Atoms.

Integer and Fractional Floquet Resonances in a Driven Three-Well System (2022)
Journal Article

We investigate Floquet dynamics of a particle held in a three-well system driven by a two-frequency field and identify integer and fractional photon resonances due to the dual-frequency driving. It is found that pairs of photon-assisted tunneling nea... Read More about Integer and Fractional Floquet Resonances in a Driven Three-Well System.

Dephasing effect of Rydberg states on trap loss spectroscopy of cold atoms (2022)
Journal Article

In this paper, we investigate the asymmetry of trap loss spectra of ultracold atoms during the excitation of Rydberg states. It is shown that the profile of a trap loss spectrum is affected by the density of Rydberg atoms as well as the dephasing rat... Read More about Dephasing effect of Rydberg states on trap loss spectroscopy of cold atoms.

Fast spin squeezing by distance-selective long-range interactions with Rydberg molecule dressing (2022)
Journal Article

We propose a Rydberg molecule dressing scheme to create strong and long-ranged interactions at selective distances. This is achieved through laser coupling ground-state atoms off-resonantly to an attractive molecular curve of two interacting Rydberg... Read More about Fast spin squeezing by distance-selective long-range interactions with Rydberg molecule dressing.

Rydberg electromagnetically induced transparency and absorption of strontium triplet states in a weak microwave field (2022)
Journal Article

We study theoretically laser excitation of Rydberg triplet states of strontium atoms in the presence of weak microwave (MW) fields. Starting from the ground state 5s21S0, the Rydberg excitation is realized through the metastable, triplet 5s5p3P1 stat... Read More about Rydberg electromagnetically induced transparency and absorption of strontium triplet states in a weak microwave field.

Coherent ground-state transport of neutral atoms (2022)
Journal Article

Quantum state transport is an important way to study the energy or information flow. By combining the unconventional Rydberg pumping mechanism and the diagonal form of van der Waals interactions, we construct a theoretical model via second-order pert... Read More about Coherent ground-state transport of neutral atoms.

BCS-BEC crossover of ultracold ions driven by density-dependent short-range interactions in a quantum plasma (2021)
Journal Article

We study theoretically a Bardeen-Cooper-Schrieffer (BCS) to Bose-Einstein condensate (BEC) crossover of two-species ions in a three-dimensional quantum plasma at zero temperature. Central to this crossover is an effective short-ranged, attractive int... Read More about BCS-BEC crossover of ultracold ions driven by density-dependent short-range interactions in a quantum plasma.

Systematic-Error-Tolerant Multiqubit Holonomic Entangling Gates (2021)
Journal Article

Quantum holonomic gates hold built-in resilience to local noises and provide a promising approach for implementing fault-tolerant quantum computation. We propose to realize high-fidelity holonomic (N + 1)-qubit controlled gates using Rydberg atoms co... Read More about Systematic-Error-Tolerant Multiqubit Holonomic Entangling Gates.

Hyperchaos in a bose-hubbard chain with rydberg-dressed interactions (2021)
Journal Article

We study the chaos and hyperchaos of Rydberg-dressed Bose–Einstein condensates (BECs) in a one-dimensional optical lattice. Due to the long-range, soft-core interaction between the dressed atoms, the dynamics of the BECs are described by the extended... Read More about Hyperchaos in a bose-hubbard chain with rydberg-dressed interactions.

Multipolar Fermi-surface deformation in a Rydberg-dressed Fermi gas with long-range anisotropic interactions (2021)
Journal Article

We study theoretically the deformation of the Fermi surface (FS) of a three-dimensional gas of Rydberg-dressed 6Li atoms. The laser dressing to high-lying Rydberg D states results in angle-dependent soft-core-shaped interactions whose anisotropy is d... Read More about Multipolar Fermi-surface deformation in a Rydberg-dressed Fermi gas with long-range anisotropic interactions.

Dipole-dipole-interaction-driven antiblockade of two Rydberg atoms (2021)
Journal Article

Resonant laser excitation of multiple Rydberg atoms are prohibited, leading to Rydberg blockade, when the long-range van der Waals interactions are stronger than the laser-atom coupling. Rydberg blockade can be violated, i.e., simultaneous excitation... Read More about Dipole-dipole-interaction-driven antiblockade of two Rydberg atoms.

Observation of blackbody radiation enhanced superradiance in ultracold Rydberg gases (2021)
Journal Article

An ensemble of excited atoms can synchronize emission of light collectively in a process known as superradiance when its characteristic size is smaller than the wavelength of emitted photons. The underlying superradiance depends strongly on electroma... Read More about Observation of blackbody radiation enhanced superradiance in ultracold Rydberg gases.

Exploring the Many-Body Dynamics Near a Conical Intersection with Trapped Rydberg Ions (2021)
Journal Article

Conical intersections between electronic potential energy surfaces are paradigmatic for the study of nonadiabatic processes in the excited states of large molecules. However, since the corresponding dynamics occurs on a femtosecond timescale, their i... Read More about Exploring the Many-Body Dynamics Near a Conical Intersection with Trapped Rydberg Ions.