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Structural phase transitions of optical patterns in atomic gases with microwave-controlled Rydberg interactions (2020)
Journal Article
Shi, Z., Li, W., & Huang, G. (2020). Structural phase transitions of optical patterns in atomic gases with microwave-controlled Rydberg interactions. Physical Review A, 102(2), Article 023519. https://doi.org/10.1103/physreva.102.023519

Spontaneous symmetry breaking and formation of self-organized structures in nonlinear systems are intriguing and important phenomena in nature. Advancing such research to new nonlinear optical regimes is of much interest for both fundamental physics... Read More about Structural phase transitions of optical patterns in atomic gases with microwave-controlled Rydberg interactions.

Submicrosecond entangling gate between trapped ions via Rydberg interaction (2020)
Journal Article
Zhang, C., Pokorny, F., Hennrich, M., Li, W., Lesanovsky, I., Higgins, G., & Pöschl, A. (2020). Submicrosecond entangling gate between trapped ions via Rydberg interaction. Nature, 580(7803), 345-349. https://doi.org/10.1038/s41586-020-2152-9

© 2020, The Author(s), under exclusive licence to Springer Nature Limited. Generating quantum entanglement in large systems on timescales much shorter than the coherence time is key to powerful quantum simulation and computation. Trapped ions are amo... Read More about Submicrosecond entangling gate between trapped ions via Rydberg interaction.

Many-Body Chiral Edge Currents and Sliding Phases of Atomic Spin Waves in Momentum-Space Lattice (2020)
Journal Article
Li, Y., Cai, H., Wang, D.-W., Li, L., Yuan, J., & Li, W. (2020). Many-Body Chiral Edge Currents and Sliding Phases of Atomic Spin Waves in Momentum-Space Lattice. Physical Review Letters, 124(14), Article 140401. https://doi.org/10.1103/physrevlett.124.140401

Collective excitations (spinwaves) of long-lived atomic hyperfine states can be synthesized into a Bose-Hubbard model in momentum space. We explore many-body ground states and dynamics of a two-leg momentum-space lattice formed by two coupled hyperfi... Read More about Many-Body Chiral Edge Currents and Sliding Phases of Atomic Spin Waves in Momentum-Space Lattice.

Electromagnetically induced transparency of interacting Rydberg atoms with two-body dephasing (2020)
Journal Article
Yan, D., Wang, B., Bai, Z., & Li, W. (2020). Electromagnetically induced transparency of interacting Rydberg atoms with two-body dephasing. Optics Express, 28(7), 9677-9689. https://doi.org/10.1364/OE.389247

We study electromagnetically induced transparency in a three-level ladder type configuration in ultracold atomic gases, where the upper level is an electronically highly excited Rydberg state. An effective distance dependent two-body dephasing can be... Read More about Electromagnetically induced transparency of interacting Rydberg atoms with two-body dephasing.

Phase synchronization in coupled bistable oscillators (2020)
Journal Article
Jessop, M. R., Li, W., & Armour, A. D. (2020). Phase synchronization in coupled bistable oscillators. Physical Review Research, 2(1), Article 013233. https://doi.org/10.1103/physrevresearch.2.013233

We introduce a simple model system to study synchronization theoretically in quantum oscillators that are not just in limit-cycle states, but rather display a more complex bistable dynamics. Our oscillator model is purely dissipative, with a two-phot... Read More about Phase synchronization in coupled bistable oscillators.

Engineering non-binary Rydberg interactions via electron-phonon coupling (2020)
Journal Article
Gambetta, F. M., Li, W., Schmidt-Kaler, F., & Lesanovsky, I. (2020). Engineering non-binary Rydberg interactions via electron-phonon coupling. Physical Review Letters, 124(4), Article 043402. https://doi.org/10.1103/PhysRevLett.124.043402

Coupling electronic and vibrational degrees of freedom of Rydberg atoms held in optical tweezers arrays offers a flexible mechanism for creating and controlling atom-atom interactions. We find that the state-dependent coupling between Rydberg atoms a... Read More about Engineering non-binary Rydberg interactions via electron-phonon coupling.

Highly efficient vortex four-wave mixing in asymmetric semiconductor quantum wells (2020)
Journal Article
Qiu, J., Wang, Z., Ding, D., Li, W., & Yu, B. (2020). Highly efficient vortex four-wave mixing in asymmetric semiconductor quantum wells. Optics Express, 28(3), 2975-2986. https://doi.org/10.1364/OE.379245

© 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement Orbital angular momentum (OAM) is an important property of vortex light, which provides a valuable tool to manipulate the light-matter interaction in the st... Read More about Highly efficient vortex four-wave mixing in asymmetric semiconductor quantum wells.

Quench dynamics of Rydberg-dressed bosons on two-dimensional square lattices (2020)
Journal Article
Zhou, Y., Li, Y., Nath, R., & Li, W. (2020). Quench dynamics of Rydberg-dressed bosons on two-dimensional square lattices. Physical Review A, 101(1), Article 013427. https://doi.org/10.1103/physreva.101.013427

We study dynamics of bosonic atoms on a two dimensional square lattice, where atomic interactions are long ranged with either a box or soft-core shape. The latter can be realized through laser dressing ground state atoms to electronically excited Ryd... Read More about Quench dynamics of Rydberg-dressed bosons on two-dimensional square lattices.

Shuttling of Rydberg ions for fast entangling operations (2019)
Journal Article
VOGEL, J., LI, W., MOKHBERI, A., LESANOVSKY, I., & SCHMIDT-KALER, F. (2019). Shuttling of Rydberg ions for fast entangling operations. Physical Review Letters, 123(15), Article 153603. https://doi.org/10.1103/PhysRevLett.123.153603

We introduce a scheme to entangle Rydberg ions in a linear ion crystal, using the high electric polarizability of the Rydberg electronic states in combination with mutual Coulomb coupling of ions that establishes common modes of motion. After laser i... Read More about Shuttling of Rydberg ions for fast entangling operations.

Nonlinear light diffraction by electromagnetically induced gratings with PT symmetry in a Rydberg atomic gas (2019)
Journal Article
Hang, C., Li, W., & Huang, G. (2019). Nonlinear light diffraction by electromagnetically induced gratings with PT symmetry in a Rydberg atomic gas. Physical Review A, 100(4), 1-13. https://doi.org/10.1103/physreva.100.043807

Understanding and manipulating the non-Hermitian optical property based on coherent atomic gases is of great importance and has attracted much theoretical and experimental attentions. Advancing this study to the nonlinear optics regime is highly desi... Read More about Nonlinear light diffraction by electromagnetically induced gratings with PT symmetry in a Rydberg atomic gas.