Quantum Physics · Physics & Astronomy
Quantum Physics
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3,630 papers, from 4 September 2026 to 5 November 2026: 3,630 arXiv preprints.
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Newest papers, page 118
Interaction-induced period shift of the Kohn oscillation in a parity-time-symmetric harmonic trap
The center of mass of a Bose--Einstein condensate in a harmonic trap oscillates at the trap frequency independently of the interactions.Two-qutrit Werner state is always local
In our paper, we show that a two-qutrit Werner state admits a local hidden-variable model for all values of the parameter in a scenario involving two projective measurements per site, with three…Spatiotemporal quantum advantages for rare-event sampling
In a world fraught with uncertainty, it behooves us to consider the most disastrous possible outcomes, in order that we can best mitigate against them.Direct estimation of $g^{(2)}(0)$ from click statistics of a multiplexed detector
We present and theoretically analyze a method for direct estimation of the second-order correlation function $g^{(2)}(0)$ from the click statistics of a multiplexed detector composed of M binary…Analytical controls for dispersive multi-qubit interactions in mediator-coupled quantum registers
Fast control of long-lived quantum registers often relies on an auxiliary degree of freedom, a mediator, but real mediator excitation can introduce decoherence, leakage, or loss when the mediator is…Orbital-Rotation Shadow Tomography Reduces the Classical Cost of Quantum-Classical Auxiliary-Field Quantum Monte Carlo
Quantum-classical auxiliary-field quantum Monte Carlo (QC-AFQMC) is a promising route to using quantum computers for strongly correlated electronic structure problems, but its scalability is limited…Evaluating Chern Topology in Discretized Brillouin Zones Using Bargmann Invariants
We develop a finite-state geometric framework based on third-order Bargmann invariants for evaluating Chern numbers and characterizing local quantum-state geometry.Determining the Number of Symmetry Sectors in Composite Quantum Spectra
The spectral fluctuations in complex quantum systems are modeled in terms of spectra from random matrices.Certification of high-dimensional entanglement in continuous-variable systems
The dimensionality of entanglement in high-dimensional quantum systems is quantified by the Schmidt number, whose large value signals potential advantages for quantum communication and quantum…Circuit growth and subspace read-out in quantum-selected configuration interaction: Separating the Hartree-Fock determinant
Predicting many molecular properties requires accurate ground-state energies of molecular Hamiltonians.Infrared Memory of a Majorana Shutter
We study a finite-width Majorana shutter as a local, time-dependent scattering defect and determine which features of its infrared memory are insensitive to the microscopic spatial profile.Self-organized Layered Structures of Nitrogen-Vacancy Centers with Preferential Orientation in Heteroepitaxial Diamond Films
Here, we report the fabrication and characterization of single crystal diamond films on a two-inch wafer-scale containing three-dimensional layered structures of negatively charged nitrogen-vacancy…Landscape-Dependent Performance of Photonic Quantum Solvers in QUBO Feature Selection for Financial Risk Detection
Feature selection for imbalanced classification tasks such as credit card fraud and consumer default detection requires balancing predictive relevance, inter-feature redundancy, and computational…Self-testing ideal quantum measurements
A fundamental prediction of quantum mechanics is that observables can be measured through ideal measurements, that is, measurements that give the same outcome when repeated and do not disturb any…Topological phase transition in a symmetric blockade structure
We present a numerical study of a blockade Hamiltonian with a local $\mathbb{Z}_2$ symmetry.Emergent Dissipation from Fluctuating Quantum-Network Topology
We investigate how dissipation can emerge in a quantum network from temporal fluctuations of the interaction topology.Hamiltonian locality testing and certification do not achieve the Heisenberg limit
We establish lower bounds for Hamiltonian property testing with access to the time-evolution operator but not its inverse.Quantum error-correcting code parameters, checkable by a certificate of provable size
Quantum error correction protects quantum information by encoding it in a code described by three numbers: how many physical qubits it uses, how many logical qubits it protects, and the smallest…Two-center Dirac equation in a Gaussian basis set
A method for solving the two-center Dirac equation using a Gaussian-product basis set tailored to the axial symmetry of diatomic systems is presented.Evolving Hybrid Quantum-Classical Architectures for Image Classification
Hybrid quantum classical neural networks integrate parameterized quantum circuits (PQCs) with established deep learning architectures, but their performance depends strongly on the choice of quantum…