858 papers
This paper investigates the interplay between quantum Fisher information and atom-environment entanglement in a moving four-level atom coupled to a Kerr optomechanical cavity under a magnetic field, revealing how hybrid coupling and nonlinearity govern the redistribution of phase information and the generation of correlations.
This paper demonstrates that applying an asymmetric resonant drive to a single qubit in a collectively dissipative multi-qubit system preserves and enhances steady-state entanglement between undriven pairs, offering a practical strategy for entanglement protection in superconducting architectures.
This paper introduces Residual-Certified Pivoted Coulomb Compression (RCPC), an adaptive low-rank approximation method that utilizes the positive-semidefinite residual of pivoted Cholesky factorization to provide rigorous, density-specific upper bounds on Coulomb-energy errors, thereby enabling accurate and efficient density fitting with guaranteed a posteriori error control.
This paper presents an analytical solution to the two-dimensional advection-diffusion equation incorporating ground deposition velocity and wind-speed-dependent eddy diffusivity, which is then validated against existing three-dimensional published data.
This study establishes a validated methodology combining first-principles molecular dynamics with plasma kinetic modeling to reveal that multi-quantum vibrational de-excitations during N2 scattering on Ru(0001) are a critical, previously overlooked mechanism that significantly influences plasma chemistry and catalytic performance.
This study demonstrates that integrating vanadium dioxide into an asymmetric terahertz metasurface enables a unique non-monotonic plasmon-induced transparency response, where the transparency window is suppressed and then re-emerges at lower frequencies as conductivity increases, a phenomenon explained by a coupled-mode theory model involving dynamic variations in coupling, damping, and detuning.
This computational study demonstrates that a robust Fisher-information-based echo scheduling strategy significantly outperforms standard linear and logarithmic sampling in two-component CPMG NMR relaxometry by optimizing 32 echo times for uncertain T2 parameters, thereby reducing estimation errors and providing a reproducible route for acquisition design despite fundamental identifiability limits when relaxation times are closely spaced.
This paper demonstrates that introducing -symmetric sawtooth corrugations into acoustic waveguides locks orbital polarization to geometry, enabling switchable bound states in the continuum through rotational control of modal overlap and transmission.
This study investigates the applicability of the Jacobi-Legendre polynomial cluster-expansion approach for fitting potential energy surfaces of multi-species triatomic systems, demonstrating that while the method struggles with long-range interactions, it achieves high accuracy in the short-to-medium range for systems like HeLiH+ and HSO, as validated by bound-state calculations.
This paper introduces QID-OS, a proactive control framework that combines Recursive Least Squares estimation, adaptive scheduling, and pulse-level compensation to predict and mitigate environmental noise in real-time, thereby significantly improving logical fidelity in simulations and boosting GHZ-5 state fidelity by nearly 20 percentage points on IBM Quantum hardware.