All Outputs (69)

Rydberg superatoms: An artificial quantum system for quantum information processing and quantum optics (2024)
Journal Article

Dense atom ensembles with Rydberg excitations display intriguing collective effects mediated by their strong, long-range dipole-dipole interactions. These collective effects, often modeled using Rydberg superatoms, have gained significant attention a... Read More about Rydberg superatoms: An artificial quantum system for quantum information processing and quantum optics.

Shock wave generation and propagation in dissipative and nonlocal nonlinear Rydberg media (2024)
Journal Article

We investigate the generation of optical shock waves in strongly interacting Rydberg atomic gases with a spatially homogeneous dissipative potential. The Rydberg atom interaction induces an optical nonlocal nonlinearity. We focus on local nonlinear (... Read More about Shock wave generation and propagation in dissipative and nonlocal nonlinear Rydberg media.

Tripartite quantum Rabi model with trapped Rydberg ions (2024)
Journal Article

We investigate a tripartite quantum Rabi model (TQRM) wherein a bosonic mode concurrently couples to two spin-1/2 particles through a spin-spin interaction, resulting in a spin-spin-boson coupling - a departure from conventional quantum Rabi models f... Read More about Tripartite quantum Rabi model with trapped Rydberg ions.

Spectral Signatures of Vibronic Coupling in Trapped Cold Ionic Rydberg Systems (2024)
Journal Article

Atoms and ions confined with electric and optical fields form the basis of many current quantum simulation and computing platforms. When excited to high-lying Rydberg states, long-ranged dipole interactions emerge which strongly couple the electronic... Read More about Spectral Signatures of Vibronic Coupling in Trapped Cold Ionic Rydberg Systems.

Real-imaginary spectrum decomposition of the transparency spectra in microwave dressed Rydberg systems (2024)
Journal Article

To distinguish the contributions of electromagnetically induced transparency (EIT) and Autler-Townes splitting (ATS) in their applications in precision laser spectroscopy, we propose a real-imaginary spectrum decomposition method to investigate the t... Read More about Real-imaginary spectrum decomposition of the transparency spectra in microwave dressed Rydberg systems.

Benchmarking discrete truncated Wigner approximation and neural network quantum states with the exact dynamics in a Rydberg atomic chain (2024)
Journal Article

We benchmark the discrete truncated Wigner approximation (DTWA) and Neural quantum states (NQS) based on restricted Boltzmann-like machines with the exact excitation and correlation dynamics in a chain of ten Rydberg atoms. The initial state is where... Read More about Benchmarking discrete truncated Wigner approximation and neural network quantum states with the exact dynamics in a Rydberg atomic chain.

Dissipative stabilization of high-dimensional GHZ states for neutral atoms (2024)
Journal Article

High-dimensional quantum entanglement characterizes the entanglement of quantum systems within a larger Hilbert space, introducing more intricate and complex correlations among the entangled particles' states. The high-dimensional Greenberger-Horne-Z... Read More about Dissipative stabilization of high-dimensional GHZ states for neutral atoms.

Ergodicity breaking from Rydberg clusters in a driven-dissipative many-body system (2024)
Journal Article

It is challenging to probe ergodicity breaking trends of a quantum many-body system when dissipation inevitably damages quantum coherence originated from coherent coupling and dispersive two-body interactions. Rydberg atoms provide a test bed to dete... Read More about Ergodicity breaking from Rydberg clusters in a driven-dissipative many-body system.

Interference of cavity light by a single atom acting as a double slit (2023)
Journal Article

Young's double-slit interference experiment is central to quantum mechanics. While it has been demonstrated that an array of atoms can produce interference in light, it is a fundamental question to ask whether a single atom can act as a double slit w... Read More about Interference of cavity light by a single atom acting as a double slit.

Rydberg-ion flywheel for quantum work storage (2023)
Journal Article

Trapped ions provide a platform for quantum technologies that offers long coherence times and high degrees of scalability and controllability. Here, we use this platform to develop a realistic model of a thermal device consisting of two laser-driven,... Read More about Rydberg-ion flywheel for quantum work storage.

Accelerating relaxation through Liouvillian exceptional point (2023)
Journal Article

We investigate speeding up of relaxation of Markovian open quantum systems with the Liouvillian exceptional point (LEP), where the slowest decay mode degenerate with a faster decay mode. The degeneracy significantly increases the gap of the Liouvilli... Read More about Accelerating relaxation through Liouvillian exceptional point.

Thermal-dephasing-tolerant generation of mesoscopic superposition states with Rydberg dressed blockade (2023)
Journal Article

Multipartite entangled states involving nonlocality are one of the most fascinating characteristics of quantum mechanics. In this work we propose a thermal-dephasing-tolerant generation of mesoscopic entangled states with Rydberg dressed atoms. We en... Read More about Thermal-dephasing-tolerant generation of mesoscopic superposition states with Rydberg dressed blockade.

Quantum sensing of microwave electric fields based on Rydberg atoms (2023)
Journal Article
Yuan, J., Yang, W., Jing, M., Zhang, H., Jiao, Y., Li, W., …Jia, S. (2023). Quantum sensing of microwave electric fields based on Rydberg atoms. Reports on Progress in Physics, 86(10), https://doi.org/10.1088/1361-6633/acf22f

Microwave electric field (MW E-field) sensing is important for a wide range of applications in the areas of remote sensing, radar astronomy and communications. Over the past decade, Rydberg atoms have been used in ultrasensitive, wide broadband, trac... Read More about Quantum sensing of microwave electric fields based on Rydberg atoms.

High-Fidelity Interconversion between Greenberger-Horne-Zeilinger and W States through Floquet-Lindblad Engineering in Rydberg Atom Arrays (2023)
Journal Article
Shao, X. Q., Liu, F., Xue, X. W., Mu, W. L., & Li, W. (2023). High-Fidelity Interconversion between Greenberger-Horne-Zeilinger and W States through Floquet-Lindblad Engineering in Rydberg Atom Arrays. Physical Review Applied, 20(1), https://doi.org/10.1103/PhysRevApplied.20.014014

Greenberger-Horne-Zeilinger and W states feature genuine tripartite entanglement that cannot be converted into each other by local operations and classical communication. Here, we present a dissipative protocol for deterministic interconversion betwe... Read More about High-Fidelity Interconversion between Greenberger-Horne-Zeilinger and W States through Floquet-Lindblad Engineering in Rydberg Atom Arrays.

Controllable bistability and squeezing of confined polariton dark solitons (2023)
Journal Article
Wang, G., Hou, K., Liu, Y., Bi, H., Li, W., & Xue, Y. (2023). Controllable bistability and squeezing of confined polariton dark solitons. Optics Express, 31(14), 22722-22732. https://doi.org/10.1364/oe.493274

The generation of squeezed light in semiconductor materials opens opportunities for building on-chip devices that are operated at the quantum level. Here we study theoretically a squeezed light source of polariton dark solitons confined in a geometri... Read More about Controllable bistability and squeezing of confined polariton dark solitons.

Signatures of Quantum Chaos of Rydberg-Dressed Bosons in a Triple-Well Potential (2023)
Journal Article
Yan, T., Collins, M., Nath, R., & Li, W. (2023). Signatures of Quantum Chaos of Rydberg-Dressed Bosons in a Triple-Well Potential. Atoms, 11(6), Article 89. https://doi.org/10.3390/atoms11060089

We studied signatures of quantum chaos in dynamics of Rydberg-dressed bosonic atoms held in a one-dimensional triple-well potential. Long-range nearest-neighbor and next-nearest-neighbor interactions, induced by laser dressing atoms to strongly inter... Read More about Signatures of Quantum Chaos of Rydberg-Dressed Bosons in a Triple-Well Potential.

High-Sensitivity Rydberg-Atom-Based Phase-Modulation Receiver for Frequency-Division-Multiplexing Communication (2023)
Journal Article
Cai, Y., Shi, S., Zhou, Y., Li, Y., Yu, J., Li, W., & Li, L. (2023). High-Sensitivity Rydberg-Atom-Based Phase-Modulation Receiver for Frequency-Division-Multiplexing Communication. Physical Review Applied, 19(4), Article 044079. https://doi.org/10.1103/PhysRevApplied.19.044079

Due to the exaggerated properties of highly excited atomic states, a Rydberg-atom-based microwave receiver holds the promise to achieve superior performances in microwave metrology and communication when compared to conventional antennas. However, de... Read More about High-Sensitivity Rydberg-Atom-Based Phase-Modulation Receiver for Frequency-Division-Multiplexing Communication.

Maximally entangled Rydberg-atom pairs via Landau-Zener sweeps (2023)
Journal Article
Varghese, D., Wüster, S., Li, W., & Nath, R. (2023). Maximally entangled Rydberg-atom pairs via Landau-Zener sweeps. Physical Review A, 107(4), Article 043311. https://doi.org/10.1103/PhysRevA.107.043311

We analyze the formation of maximally entangled Rydberg atom pairs subjected to Landau-Zener sweeps of the atom-light detuning. Though the populations reach a steady value at longer times, the phases evolve continuously, leading to periodic oscillati... Read More about Maximally entangled Rydberg-atom pairs via Landau-Zener sweeps.

Casimir-Polder interactions of S-state Rydberg atoms with graphene (2023)
Journal Article
Wongcharoenbhorn, K., Koller, C., Fromhold, T. M., & Li, W. (2023). Casimir-Polder interactions of S-state Rydberg atoms with graphene. Physical Review A, 107(4), Article 043308. https://doi.org/10.1103/PhysRevA.107.043308

We investigate the thermal Casimir-Polder (CP) potential of 87Rb atoms in Rydberg nS-states near single- and double-layer graphene, and briefly look into the lifetimes near graphene-hexagonal boron nitride (hBN) multilayered structures. The dependenc... Read More about Casimir-Polder interactions of S-state Rydberg atoms with graphene.

Rabi- and Blockade-Error-Resilient All-Geometric Rydberg Quantum Gates (2023)
Journal Article
Su, S. L., Sun, L. N., Liu, B. J., Yan, L. L., Yung, M. H., Li, W., & Feng, M. (2023). Rabi- and Blockade-Error-Resilient All-Geometric Rydberg Quantum Gates. Physical Review Applied, 19(4), Article 044007. https://doi.org/10.1103/PhysRevApplied.19.044007

We propose a nontrivial two-qubit gate scheme in which Rydberg atoms are subject to designed pulses resulting from geometric evolution processes. By utilizing hybrid robust nonadiabatic and adiabatic geometric operations on the control atom and targe... Read More about Rabi- and Blockade-Error-Resilient All-Geometric Rydberg Quantum Gates.