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 153
Classical simulation of amplitude-damped bucket-brigade quantum random access memories via predictable branch evolution
Classical simulation of quantum random access memory (QRAM) under noise can be accelerated dramatically by branch pruning: noise histories are sampled as trajectory ensembles, and good branches…All-vs-Nothing Operational Manifestation of Preparation Contextuality
Preparation contextuality is often manifested operationally through a quantitative advantage over preparation-noncontextual models in information-processing tasks, yet quantum theory typically falls…Simulation-Based Quantum System Inference with Neural Posterior Estimation
Models of quantum systems faithfully map system parameters to observations, but the inverse problem of parameter inference from measurement data presents a fundamental challenge: computationally…Cyclotomic Cosets: Hidden Subgroup and Quantum Sieving Algorithm for Prime-Power Moduli
The Learning With Errors (LWE) problem is a fundamental assumption in post-quantum cryptography.Enantiomer-specific pumping of chiral molecules in high-$J$ rotational states
Enantiomer-specific state transfer (ESST) based on electric-dipole transitions has attracted considerable interest in the studies of manipulating molecules with electromagnetic fields.Experimental quantum-computing-enhanced sensing using Grover's algorithm
The combination of quantum sensing with quantum computing to provide an enhancement over conventional quantum sensing has recently emerged as a promising potential application of quantum computing…Classical Bound on the Fisher Information Rate of a Dephasing-Enhanced Quantum Neuron
Dephasing can sharpen the activation of a dissipative quantum neuron, but a stationary response does not determine how much input information its output delivers per unit time.From Simple Sources to Quantum Advantage: Homomorphic Polynomial Transduction via Relative Decoding
Decoded quantum interferometry (DQI) and its Hamiltonian extension (HDQI) prepare states whose amplitudes are low-degree polynomials of an objective, using Fourier transforms and coherent decoding.From Quantum to Classical Dissipative Spin Dynamics
The Landau-Lifshitz-Gilbert (LLG) equation provides the fundamental description of dissipative magnetization dynamics.Accurate and bounded approximation of quantum correlation functions
The exact classical simulation of non-integrable quantum systems rapidly becomes intractable beyond small system sizes, yet its role is central to predicting many-body dynamics.Asymptotically Good Quantum Codes with Addressable Transversal T Gates
Designing quantum codes with both transversal non-Clifford gates and good error-correcting parameters is an important goal in fault-tolerant quantum computation.The Overlap Gap Property: Separating Quantum and Quantum-Inspired Approximate Optimization Algorithms
In this paper, we prove that the Mean-Field Approximate Optimization Algorithm (MF-AOA), a quantum-inspired classical algorithm of the Quantum Approximate Optimization Algorithm (QAOA), is unable to…Weakly interacting fermionic Gibbs states are Gaussian mixtures and classically simulable
Identifying regimes in which interacting fermionic systems admit efficient classical simulation is a crucial task in quantum many-body physics.Deployment of Large IQP Circuit Born Machines on Qubit-Limited Hardware Using Noise Injection
Quantum circuit Born machines (QCBMs) built with instantaneous quantum polynomial (IQP) circuits have loss functions that can be efficiently estimated classically, but require quantum computers…Positronium Laser Deceleration, Cooling and Trapping
We numerically study laser deceleration, cooling and trapping of host fast ortho-positronium (Ps) bunches as produced in silica microchannel targets using positron bunches from a Surko trap.Generating Vector-Vortex $γ$ Photons by Nonlinear Compton Scattering
Vector-vortex photons, characterized by a nonseparable coupling between polarization and orbital angular momentum (OAM), offer opportunities for optical manipulation, quantum communication, nuclear…Exact probability distributions of complex spacing ratios in non-Hermitian random matrices
The complex spacing ratio is the complex displacement from a reference eigenvalue to its nearest neighbor divided by the corresponding displacement to its next-to-nearest neighbor.A technological capability scale for civilizations from the Kardashev and Barrow scales
We introduce a technological capability scale that ranks civilizations by the control operations they can perform per second.Computational Complexity of Clifford Template Compilation: Are Quantum Computers Useful for Compiling Quantum Circuits?
A Clifford template is a finite ordered family of repeatable Clifford operations, and an instantiation specifies how many times each operation is applied.An Exact Polynomial Task-Risk Bridge for Time-Multiplexed Photonic Quantum Reservoirs
Time-multiplexed (TDM) photonic reservoirs are usually judged by their scores on a few datasets, which say little about a chip's overall performance, and designed by enumerating candidate circuits…