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 46
Traceable Quantum Secret Sharing
Quantum secret sharing protects distributed quantum information against unauthorized reconstruction, yet existing schemes provide no intrinsic accountability when shares are leaked or forged.Performing a Quantum Subroutine Using Cluster States
Quantum subroutines, like their classical counterparts, serve as essential components of larger algorithms.Bose-Einstein condensate in a shell: nonlinear modes and symmetry breaking
The state of a quantum particle confined to a spherical surface is commonly described using spherical harmonics, which play a crucial role in solving many scientific problems featuring spherical…Two-Layer Verification for Fault-Tolerant Magic-State Preparation in High-Rate Quantum Codes
Encoded magic states are essential for universal fault-tolerant quantum computation, but their resource-efficient preparation in high-rate quantum codes remains challenging.Near-field maps of topological edge states of molecular aggregates
Self-assembled two-dimensional molecular aggregates provide a versatile platform for engineering excitonic states, including topologically nontrivial edge states.High Resolution Hyperspectral Quantum Infrared Imaging with Undetected Photons
Quantum sensing in the infrared regime often demands the use of expensive and cryogenically operated detectors.Fundamental bound on Wigner negativity generation from environmental collisions
Beyond quadratic potentials, classical evolution laws are typically thought to arise from quantum theory as an approximate description.Finite Nonsignalling Resources Suffice to Simulate Entangled Qubits
A longstanding question in Bell nonlocality is whether finite-alphabet nonsignalling resources can reproduce the continuum of measurement correlations of partially entangled qubits.Entangled logical qubits on a superconducting quantum processor
We demonstrate high-fidelity logical qubit operations using \texttt{ibm\_phoenix}, a square-lattice array of 120 coupled superconducting qubits that are capable of fast reset.Quantum theory of laser noise in coherent-scattering levitated optomechanics
State purity is a key resource for experimental tests of quantum mechanics with massive objects.Quantum Landau Lifshitz Gilbert equation in ferromagnetic conductors and magnetic insulators
Understanding the microscopic origin of magnetic damping is essential for describing magnetization dynamics in nanoscale magnetic systems.Quantum Secret Sharing from CSS qLDPC Codes: Computable Access Structures, Accessible Logical Dimension, and Topology-Aware Network Cost
Quantum secret sharing (QSS) schemes can be constructed from quantum error-correcting codes, but characterizing their access structures and implementation costs becomes challenging for…LYNX - A trapped-ion quantum information processor
We introduce LYNX, a quantum information processor based on trapped $^{40}$Ca$^+$ ions.Photon-Pair Advantage for Dissipative Parameter Estimation in Whispering-Gallery-Mode Interferometers
We study the estimation of detuning and intrinsic loss in a lossy whispering-gallery-mode (WGM) resonator located in a balanced Mach--Zehnder interferometer.Classical Pre-Training of Large Shallow Parametrized Quantum Circuits through Pauli Propagation and deployment on Quantum Hardware
Scaling parametrized quantum circuits to a larger number of qubits is a central challenge in Quantum Machine Learning: gradient estimation via the parameter-shift rule quickly becomes prohibitively…A note on the monotonicity of observational ergotropic advantage
Very recently, Mahanti et al. (arXiv:2609.18735) introduced the observational ergotropic advantage, which gives the maximum value of extra work that a measurement can obtain with respect to all…The Compendium of Super-Quadratic Computational Quantum Advantages
This compendium presents a structured collection of computational problems with credible prospects for realizing meaningful quantum advantage, focused on describing problem characteristics rather…QuantumBilliards.jl: An extensible, user friendly, high-performance Julia library for the large scale computation of spectra and eigenstates of quantum billiards and related problems
We present QuantumBilliards.jl, an open-source Julia library providing a suite of numerical solvers for the two-dimensional interior Helmholtz eigenproblem with Dirichlet boundary conditions, a…Optimizing Quantum Battery via Counterdiabatic driving
We analyze the energy charging of a quantum battery within an open quantum framework, where the interaction between the battery element and an external power source is mediated by an ancilla system…Trace-distance characterization of recurrent pairwise synchronization in cavity-coupled superconducting qubits
We theoretically investigate recurrent pairwise synchronization in three super?conducting qubits coupled to a common single-mode microwave cavity.