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 37
Homodyne Unravelling and Parameter Estimation in Squeezed Thermal Baths
We derive an alternative formulation of the stochastic master equation describing the evolution of quantum systems continuously measured via homodyne detection in a squeezed-thermal environment.Adaptive Information Mining: Approaching the Quantum Limit of Super-Resolution Imaging
The "Rayleigh limit" is not an intrinsic property of light, but a consequence of sub-optimal measurement of collected photons by the imaging instrument.Recovering classical gauge geometry from quantum master constraints
Exact normalizable solutions of quantum constraints form a symplectic submanifold of the space of rays, whereas classical first-class constraints define a surface on which the symplectic form is…Meet-in-the-Middle Compilation of the $[\mathrm{CNOT}]$ Class with Fibonacci Anyons
Compilation of two-qubit Fibonacci anyon gates is complicated by leakage ($\ell$) from the four-dimensional computational sector to the fifth state of the fusion space.Dynamical quantum simulations as laboratories for quantum information
Dynamical quantum simulations are commonly designed to access a particular response function or correlation function.Classical Verification of Quantum Computation Beyond the Polynomial Hierarchy
It is not known whether a classical polynomial-time verifier can verify arbitrary polynomial-time quantum computations with an efficient quantum honest prover without computational assumptions.Mediated Interactions between Fermi Polarons in the Strongly Interacting Regime
Mediated interactions between quasiparticles lie at the heart of Landau Fermi-liquid theory, yet their behavior in the strongly correlated regime is not fully understood.Optimal quantum discrimination at Liouvillian exceptional points
Central to non-Hermitian sensing is the question of whether exceptional points (EPs) can make weak perturbations easier to detect.Exact Analytical Treatment of Collectively Pumped Dicke Superradiance
We study the dynamics of an ensemble of $N$ two-level emitters undergoing collective decay at rate $Γ$ and collective incoherent pumping at rate $R$, confined to the fully symmetric Dicke ladder.Defining 2-group symmetries on lattices and extracting their anomalies
Ordinary $0$-form symmetries $G$ can mix with $1$-form symmetries $Π_2$ to form a $2$-group $\mathcal{G}$.Fundamental limits on photonic state preparation from phase-space majorization
Preparing complex quantum states of light for quantum information processing tasks often proceeds by converting from simpler states via experimentally accessible operations.Long-Range Toric Code: Finite-Temperature Topological Order in Two Dimensions
We introduce two-dimensional toric code models with additional long-range loop interactions.Magic in Grover's Algorithm and the Role of Oracle Synthesis
Grover's algorithm is a textbook example of quantum advantage, providing a quadratic query speedup over classical methods for unstructured search.Entanglement measures and LOCC conversion criteria from Schur-Weyl duality
The characterization of possible transformations between quantum states and the quantification of entanglement are central for understanding quantum resources.Topological Quantum Error-Correcting Thresholds of a Symmetry-Enriched Toric Code
We study the error thresholds of a new topological quantum error-correcting code under the independent bit-flip and phase-flip noisy channel.Parity-Resolved Many-Body Kinetics of a Topological Qubit under Nonequilibrium Phonon Pulses
Phonon bursts from ionizing radiation cause correlated errors in superconducting quantum processors.Complex Langevin kernels for real-time SU(N) lattice gauge theory in 3+1 dimensions
We investigate complex Langevin (CL) dynamics for real-time SU($N$) gauge theories in 3+1 dimensions and introduce new kernel modifications tailored for lattice gauge theory (LGT).Lower Bound for Region of Non-Distillable Magic States
Magic states are a leading proposal for realizing fault-tolerant and universal quantum computation.Exact Solution of the $(2+1)$-Dimensional Dunkl-Klein-Gordon Oscillator with a Uniform Magnetic Field in Non-Commutative Phase Space
We solve the Klein-Gordon oscillator in a non-commutative phase space, generalized using Dunkl derivatives, both with and without interaction with a uniform magnetic field.Stellar Representation of Gottesman Kitaev Preskill States on the Double Discrete Cylinder
Covariant integral quantization is developed on the double discrete cylinder phase space, with the torus as configuration space, and yields the Wigner distribution and the stellar representation.