78 papers
This paper presents environmental measurements at the Sedrun Access Shaft in Switzerland, demonstrating that its low ground motion and electromagnetic background levels make it a viable site for an 800-meter atom interferometer designed to detect ultralight dark matter and gravitational waves.
This paper investigates how the angular momentum quantization of Rydberg atoms creates distinct, universal spectroscopic fingerprints in electromagnetically-induced transparency signals when exposed to rotating linearly polarized radio-frequency fields, revealing two disparate atomic ladder behaviors that challenge prevailing interpretations of SI-traceable Rydberg atom electrometers.
This paper develops a theoretical framework for optical pumping in alkali-metal vapors under quasi-high-pressure buffer gas conditions, where collisional broadening is comparable to hyperfine splitting, revealing significant deviations from high-pressure approximations to guide the optimization of atomic magnetometry systems.
This paper demonstrates a programmable high-dimensional temporal mode processor using a Raman quantum memory in warm cesium vapor, which enables on-demand storage, filtering, and conversion of orthogonal temporal waveforms to serve as a coherent interface between MHz- and GHz-bandwidth modes for scalable quantum networks.
This paper introduces and compares "escalator" and "elevator" approaches for vertical ion transport in surface Paul traps, demonstrating methods to dynamically adjust ion confinement height by nearly twofold to enhance laser interaction tuning, heating studies, and cavity alignment.
This paper demonstrates a significant breakthrough in hybrid quantum networking by successfully entangling a single trapped ytterbium ion with a solid-state europium-doped quantum memory over a 75-meter distance, achieving a fidelity of 89.21% and violating the CHSH-Bell inequality to confirm nonlocality between heterogeneous quantum nodes.
This paper presents a general measurement protocol that enables the in-situ characterization of light-matter coupling to individual photonic modes in complex multimode circuit-QED systems by leveraging AC-Stark and Kerr effects, thereby eliminating the need for single-photon resolution or calibration, and validates the method using a superconducting transmon qubit coupled to a microwave resonator lattice.
This paper presents a high-precision theoretical calculation of the photodetachment energy for negative hydrogen, deuterium, and tritium ions, achieving a precision 220 times greater than previous experimental results and providing critical data for antihydrogen physics.
This paper theoretically demonstrates that a newly proposed complex-valued parameter effectively describes the strong scattering angle dependence of Fano resonance profiles in cold atomic collisions, revealing its high sensitivity to inter-atomic interaction potentials and its utility for studying these potentials.
This paper presents an efficient, GPU-extendable finite-difference simulation framework that significantly outperforms conventional methods in modeling bubble-shaped Bose-Einstein condensates, enabling the identification of key parameters for their experimental realization in microgravity environments like the International Space Station.
This paper presents the design, implementation, and theoretical validation of a compact, modular, and cost-effective tabletop high-harmonics generation beamline utilizing a hollow capillary waveguide to produce intense, broadband extreme ultraviolet and soft X-ray pulses for ultrafast pump-probe spectroscopy of complex optoelectronic devices.
This paper derives an analytic expression for the Doppler residual lineshape in thermal Rydberg ladder EIT, experimentally demonstrating a record-breaking two-photon energy resolution of 2.04 MHz (theoretically limited to 1.84 MHz) for Rubidium, which is approximately twice as narrow as previous estimates and measurements.
This paper proposes a method to resolve the ambiguity in vector magnetometry caused by anti-parallel magnetic fields by utilizing structured light and Fourier analysis of absorption profiles in optically polarized atomic vapor to achieve unambiguous, complete characterization of arbitrarily oriented magnetic fields.
This paper demonstrates that a driven-dissipative system coupling the Landau levels of a charge-neutral particle in a synthetic gauge potential to a quantized optical cavity can be effectively modeled as two highly nonlinearly coupled quantum harmonic oscillators, giving rise to hybrid "Landau polaritons" with unique entanglement, squeezing, and diverse nonequilibrium dynamics.
This paper identifies and characterizes two previously elusive families of core-bound excitations (varicose and fluting waves) on Gross-Pitaevskii vortices, detailing their dispersion relations across different wavelength limits and proposing a spectroscopic protocol for their experimental detection.
This paper reports the first realization of a spin-resolved quantum-gas microscope for fermionic Sr, enabling site-resolved detection of all 10 spin states in SU(N) Fermi-Hubbard systems to probe exotic magnetism and magnetic correlations.
This paper presents the first full-dimensional quantum scattering calculations for rovibrationally excited HD+HD collisions, identifying near-resonant transitions and low-energy resonances dominated by l=3 partial waves that agree with previous experimental cross sections and provide rate coefficients for temperatures ranging from 0.1 K to 200 K.
This paper presents exact analytical solutions for photon statistics in waveguide quantum electrodynamics within the thermodynamic limit, demonstrating that a second-order mean-field method captures exponentially enhanced superradiance followed by subradiance, while revealing that shot-to-shot fluctuations vanish and second-order coherence becomes trivial as the number of atoms approaches infinity.
This paper presents computationally efficient higher-order mean-field and perturbative analytical methods to model photon statistics and radiation dynamics in chiral waveguide QED systems, successfully capturing complex many-body correlations and benchmarking against experimental results where exact treatments are infeasible.
This paper presents an experimental study at the HIRFL-CSR storage ring demonstrating that the angular distribution of Kα1 radiation from Xe52+ ions produced via nonradiative double electron capture in collisions with Kr and Xe targets is anisotropic and sensitive to collision energy and target type, while Kα2 radiation remains isotropic, revealing distinct differences from single electron capture processes.