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 129
A computational phase diagram for the transverse field Ising model
We study the transverse field Ising model, defined by the Hamiltonian $H =\frac{1}{2}\sum_{i, j\in [n]} J_{ij} Z_i Z_j +\sum_{i=1}^n h_i^z Z_i + η\sum_{i} X_i$ where $J $ is the symmetric…Thin-capping layer epitaxial quantum dots for near-field quantum photonics
Epitaxial quantum dots (QDs) are widely recognised as one of the best quantum light sources, given their good stability, brightness, quantum efficiency and coherence.Strong Simulation of 1D Quantum Circuits via Reduced Transition Matrices
Tensor networks are powerful tools for simulating quantum many-body systems, but the growth of spatial entanglement severely limits the direct evolution of pure states under chaotic unitary circuits.Stationarity as a One-Mode Constraint on Quantum Correlation
A stationary quantum state has one dynamical phase factor and one scalar energy even when its internal response spans a large Hilbert space.One-Way Quantum Symmetric Private Information Retrieval Protocol From A Single Database Server Using NISQ Devices
Symmetric private information retrieval (SPIR) lets an inquirer obtain one specific bit only, without leaking any information about its index to the database owner.Quantum state preparation for weighted d-DNNF
The quantum state preparation problem is to, given a description of a quantum state, efficiently generate a quantum circuit computing the state.A No-Go Theorem for Order-Two Clifford Electric-Magnetic Duality
Electromagnetic duality in the toric code has order two at the level of anyon types and acts as a Hadamard-type logical transformation on the encoded quantum information.An exponential separation between entanglement-assisted and unassisted one-way quantum communication
A longstanding question in quantum communication complexity is whether some task can be accomplished with a small amount of communication in the presence of entanglement, yet require much more…On the pseudorandomness of simple quantum processes
Can simple processes appear highly complex?Lower Bounds for Preprocessing Attacks on Quantum Cryptography
We prove near-optimal lower bounds for preprocessing attacks on quantum cryptography in the random oracle model.Unitary Schur Sampling of Qudits via Random SWAP Tests: Hunt for Antisymmetry
Schur sampling is a fundamental primitive for extracting permutation-invariant information from many-body quantum systems and has broad applications in quantum information science.Quantum Advantage for Two-Party Differential Privacy
We introduce information-theoretically private quantum protocols for two-party Hamming distance when both parties must output the same estimate.Local random quantum circuits converge to the Porter-Thomas distribution in polynomial depth
Porter-Thomas statistics are a characteristic feature of the output distribution of random quantum states and, more broadly, chaotic quantum many-body systems.Spiking neural networks for streaming qubit readout
Fast and accurate qubit-state assignment is essential for feedback, calibration, and error correction in quantum processors.Quantum impurity models: easy at equilibrium, universal in motion
A quantum impurity model describes a small interacting subsystem embedded into a large bath of free fermions.Optimal transducers using symmetries
Transducers (Belovs, Jeffery and Yolcu, 2024) are a quantum computing framework describing a quantum algorithm as a unitary converting an input state into a target state using a catalyst, an…A Generalized quantum Stein lemma on von Neumann algebras
We prove a generalized quantum Stein lemma for i.i.d. normal states against convex, tensor-stable families on arbitrary von Neumann algebras.Random Quantum Circuits Beyond Moment Matching
Random quantum circuits aim to efficiently reproduce the statistical properties of ideal random quantum evolution.One-Shot any Code
We first provide a simple proof showing that any single-shot code is self-correcting.A provable quantum advantage for approximate optimization via decoded quantum interferometry
Decoded quantum interferometry (DQI) is a novel paradigm for tackling approximate optimization problems on quantum computers.