1091 papers
This paper reports the first visualization of tripartite entanglement dynamics through remotely controlled spin-skyrmion states, introducing a topological Bloch sphere to characterize quantum multiskyrmions and demonstrating how entanglement drives particle-like topological motion for potential applications in quantum sensing and multi-level encoding.
This paper experimentally demonstrates the generation and mode-selective absorption of single microwave photons in four orthogonal temporal modes using a fixed-frequency transmon qubit, achieving high absorption efficiencies for matched modes while maintaining orthogonality for rejected photons, thereby validating temporal-mode engineering as a viable strategy for multiplexed quantum networks.
This paper proposes a quantum-enhanced framework that translates airfoil shape optimization into hardware-compliant binary formulations using the Coherent Ising Machine, successfully achieving global optima and Pareto fronts with a three-orders-of-magnitude speedup over classical simulated annealing.
This paper introduces a universal, first-principles electronegativity scale based on the atomic mean inner potential (AMIP) that not only aligns with established trends and bonding classifications but also outperforms existing methods in predicting Lewis acid strengths and -ray annihilation spectral widths across diverse chemical systems.
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 two optomechanical schemes to achieve remote entanglement distribution between distinct mechanical nodes with significant frequency mismatches (megahertz and gigahertz), thereby facilitating the integration of diverse mechanical systems into hybrid quantum networks.
This paper proposes a hybrid continuous-discrete variable quantum teleportation protocol for unknown optical single-rail qubits that, while not always perfect, enables Bob to either recover the original state or utilize it with known amplitude distortions by leveraging increased classical communication to identify the specific unitary transformations applied.
The paper refutes the claim that Hilbert spaces are unphysical due to unbounded operators, arguing instead that infinite expectation values are not problematic and that replacing Hilbert spaces with Schwartz spaces would introduce greater theoretical issues by excluding meaningful Hamiltonian evolutions.
This paper establishes a scattering-matrix framework to demonstrate that exceptional points can genuinely enhance quantum Fisher information for sensing compared to isolated modes, provided the system optimizes the trade-off between non-normal spectral response and decay rates, while remaining robust against small internal losses.
This paper demonstrates that while orbital angular momentum (OAM) entanglement is highly susceptible to degradation in stochastic channels like atmospheric turbulence, an underlying topological observable remains robustly preserved even in mixed, decoherent states, offering a new pathway for maintaining quantum information in noisy environments.
This paper reports the experimental simulation of a two-boson quantum piston on a programmable photonic quantum computer, demonstrating how bosonic interference reshapes non-equilibrium work statistics and validating thermodynamic fluctuation relations like the Jarzynski equality across various driving protocols.
This paper introduces a symmetry-resolved framework that decomposes high-dimensional Liouvillian dynamics into low-dimensional invariant sectors to systematically identify and characterize exceptional points in realistic open quantum systems, accompanied by a numerical diagnostic metric for quantifying their proximity.
This paper demonstrates that all pure bipartite partially entangled states can be self-tested even when the random number generator used for Bell test settings is untrusted, provided it satisfies a residual randomness constraint weaker than full independence, thereby enabling semi-device-independent certification of the randomness source's independence from the quantum device.
This paper proposes a framework for achieving full quantum control over optomechanical damping in the few-photon regime by utilizing a strongly nonlinear cavity to create a tunable dressed-state manifold, thereby trading raw cooling power for precise coherent manipulation of mechanical modes.
This paper demonstrates that violations of random matrix theory predictions for local observables, specifically regarding quantum Fisher information dynamics and fluctuation-dissipation relations, can serve as effective witnesses for detecting ergodicity-breaking transitions in quantum many-body systems across integrability, many-body localization, and quantum many-body scars.
This theoretical work proposes a high-connectivity honeycomb transmon lattice architecture utilizing tunable couplers and a shared central mode to enable efficient, fast, and accurate all-to-all two-qubit gates within unit cells while mitigating crosstalk and spectator qubit errors.
This paper proposes a hybrid photonic quantum reservoir computing framework that combines a sparse denoising autoencoder with fixed photonic reservoirs and classical context to achieve state-of-the-art, sub-millisecond swaption surface prediction with zero trainable quantum parameters, outperforming both classical and variational quantum baselines.
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 investigates the universal purification dynamics in monitored non-unitary quantum processes across different random-matrix symmetry classes by employing two complementary toy models—discrete-time Gaussian matrix multiplication and continuous-time Dyson Brownian motion—to derive explicit expressions for the universal decay of Rényi entropies and validate these theoretical predictions through numerical simulations.
This paper establishes a quantum statistical framework for passive optical surface metrology, demonstrating that spatial mode sorting can achieve near-quantum-limited estimation and enhanced detection of sub-diffraction defects like cracks without requiring active illumination control.