78 papers
This paper presents a semiclassical molecular dynamics simulation using OpenMM to demonstrate that the quantum yield of Interatomic Coulombic Electron Capture (ICEC) in aqueous solutions containing Fe cations approaches unity at higher concentrations and electron energies, while decreasing at lower concentrations due to energy loss.
This paper demonstrates a technique using AC Stark shifts from a microwave drive to tune Rydberg atoms into a Förster resonance, thereby enhancing interaction strength and range by shifting the scaling from $1/R^61/R^3$ while maintaining state stability and field insensitivity.
This paper derives finite-value effective operators for and QED corrections to HD rovibrational transitions beyond the Born-Oppenheimer approximation, utilizing cut-off regularization and Hylleraas basis calculations to achieve a threefold reduction in uncertainty compared to previous results.
This paper extends a previously developed quantum mechanical scattering theory to various atomic species, demonstrating that interactions between remaining neutral atoms and electrons in expanding ultracold plasmas induce Rydberg ionization, three-body recombination, and a "quantum pressure" that explains previously anomalous experimental observations of faster plasma expansion.
This paper extends previous theoretical studies on two-photon K-shell ionization by incorporating non-dipole effects, revealing that these effects drastically reduce the generalized cross-sections for the Fe16+ ion by several orders of magnitude compared to the dipole approximation.
This paper presents a minimally destructive, in situ technique that utilizes ultracold Rb-87 atoms themselves as a built-in magnetometer to measure and stabilize slowly drifting magnetic fields via weak measurements and Kalman filtering, effectively eliminating long-term drift while maintaining high precision.
This paper demonstrates that replacing rubidium with potassium in an all-dielectric vapor cell significantly enhances low-frequency field transmission, enabling a Rydberg-atom sensor to detect electromagnetic fields down to 500 Hz and extending the low-frequency cutoff by nearly four orders of magnitude compared to traditional rubidium-based sensors.
This paper proposes and theoretically validates a cavity-based electromagnetically induced transparency (EIT) technique for efficiently measuring the temperature and phonon occupation of trapped ions in the resolved-sideband regime, offering a simplified thermometry tool applicable to both strong and weak coupling cavity QED systems.
This paper provides a theoretical framework demonstrating how entanglement between optical field modes can be distilled into genuine entanglement between the physical wavefunctional degrees of freedom of photons, thereby clarifying the critical role of measurement context and subsystem definition in quantum optical systems.
This study demonstrates that a mesoscopic Fermi gas in a high-finesse cavity exhibits a non-monotonic superradiant threshold driven by a crossover between Fermi pressure-assisted ordering and Pauli blocking, while also enabling the observation of spin-density-wave phases through spin-dependent light-induced forces.
This paper extends a classical canonical framework for analyzing composite pulse robustness to two-dimensional distributions of initial states on the Bloch sphere, demonstrating that while Levitt's $90(x)180(y)90(x)$ sequence remains largely robust against initial state imperfections, numerical optimization can identify variants that achieve superior coherent population inversion.
This paper presents a differential magnetic sensing technique using a cold-atom cloud in a magnetic quadrupole trap, which achieves milli-Gauss resolution by measuring the displacement of the trap center under field reversal to cancel common-mode noise without requiring spectroscopic interrogation.
This paper proposes a quantum simulation scheme using ultracold atoms in optical lattices to realize the three-band Emery model, enabling the study of high-temperature superconductivity in cuprates and nickelates on system sizes that are currently inaccessible to numerical methods.
This paper presents the calibration and characterization of Rydberg atom-based electric field sensors operating in the 1 kHz to 300 MHz range, achieving a noise-equivalent field of 106(4) at 300 MHz while validating a phenomenological model for low-frequency screening in quartz and sapphire vapor cells.
This paper evaluates the performance of the Binary-Encounter Bethe (BEB) model when utilizing experimental ionisation thresholds instead of theoretical ones, demonstrating that this adjustment improves the accuracy of partial ionisation cross sections for predicting subsequent plasma processes.
This paper reports the precise measurement of the zero crossing of the differential scalar polarizability for the Ba clock transition at 623.603(17) THz, a result that validates atomic structure calculations, enables an accurate model for blackbody radiation shift assessments, and demonstrates the approach's applicability to other alkaline-earth ions.
This paper reports the first successful search, observation, and coherent manipulation of electric-quadrupole forbidden vibrational transitions in single trapped nitrogen molecular ions (N) using quantum-logic spectroscopy, thereby overcoming the challenge of complex molecular energy structures to enable new applications in precision spectroscopy, molecular qubits, and infrared clocks.
This paper proposes that quantum sensors can detect bursts of ultralight bosonic fields emitted during violent astrophysical events, thereby establishing a new multimessenger astronomy channel that remains viable even when accounting for matter screening effects.
This paper develops a model to estimate the upper bound of interference effects in multi-pass cells on laser-induced muonic hydrogen hyperfine transitions, concluding that while neglecting these effects can theoretically overestimate transition probabilities, they are negligible under the specific experimental conditions studied.
This paper introduces a fully relativistic close-coupling approach that incorporates plasma screening effects to model Stark broadening, resolving theoretical bottlenecks in electron-ion collisions and providing a quantum-mechanical interpretation of screening factors for improved plasma diagnostics.