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 136
A depolarizing choir sings in Gaussian harmony
We study the noise threshold for positive quantum capacity for the qubit depolarizing channel.Theory of spacetime quantum fault tolerance
We present a unified algebraic theory of Clifford spacetime quantum fault tolerance, which underpins universal fault-tolerant quantum computation.Measurement and feedforward circuits from quantum error correcting codes
Measurements and feedforward enhance the power of shallow quantum circuits, enabling the deterministic implementation of global unitary operations and the preparation of long-range entangled states.No-go theorems for dual Hamiltonians of Non-Abelian Lattice Gauge Theories
Hamiltonian simulations of lattice gauge theories promise new insights into the inner workings of QCD.Double Localization for Quantum Gibbs Sampler Gaps: From an Abstract Framework to Finite-Group Models
We introduce double localization, a framework for proving spectral gaps of quantum Gibbs samplers through two complementary operations: geometric localization, which selects updates supported in…Sharp Quantum Entropy Mixing Rates and the Operator Layer Cake Theorem
At what rate does the von Neumann entropy of an ensemble of quantum states change under Hamiltonian evolution of its constituents?Learning Random Quantum Circuits and the Emergence of Pseudorandomness
We give an efficient algorithm for learning $k$-dimensional brickwork random quantum circuits using only copies of the output state obtained by applying $U$ to the all-zero input.Improved Quantum Random Self-Reduction for Linear Problems
We study quantum random self-reductions for linear problems over finite fields.Dynamic distributed quantum sensing of radio-frequency fields via time-bin entanglement
We propose a novel framework for discrete-variable (DV) distributed quantum sensing, wherein traditional polarization-based probes are replaced with time-bin entangled qubits.All-Microwave Multiqubit Gates
Implementing high-fidelity multiqubit gates is critical for reducing circuit depth in near-term quantum processors and fault-tolerant architectures.A self-tallying quantum anonymous voting protocol for multiple-selection elections
Self-tallying quantum anonymous voting (SQAV) has drawn considerable attention since it was proposed.Natural Barriers to Quantum Extraction: On the Post-Quantum (In)security of (O)EKE and Masny-Rindal OT
Encrypted key exchange (EKE), introduced by Bellovin and Merritt (IEEE S\&P 1992), and Masny-Rindal OT, introduced by Masny and Rindal (ACM CCS 2019), are highly-efficient methods for compiling…EPR Count for Runtime Prediction in Distributed Quantum Computing
EPR-pair consumption is commonly used as a communication-cost objective in distributed quantum computing, but minimizing EPR cost does not necessarily minimize distributed execution time.Optical measurement is almost quantum: Quantum inspired universal optical bounds
Inspired by results in quantum information, we report the development of a formalism for optical sensing which abstracts the details of specific optical systems and allows us to form general bounds…Reverse quantum state diffusion from differential geometry
Quantum state diffusion unravels a Lindblad master equation into stochastic trajectories of pure states.Reducing the Entanglement Cost of Distributed Bipartite Quantum Computation with Constant Qubit Overhead
Distributed quantum computation connects multiple quantum processing units (QPUs) through quantum communication to jointly perform large-scale quantum computations.Parallel algebraic surgery for qLDPC codes with constant shuttling depth
Reconfigurable atom arrays provide a promising platform for high-rate quantum low-density parity-check codes, but their computational advantage depends on whether logical operations can be…Fault Tolerant Quantum Phases of Matter
We introduce a classification of quantum phases of mixed states based on the ability to preserve and fault tolerantly transfer information.Quantum State Routing and Perfect State Transfer on Signed Graphs under Environmental Noise
Routing unknown quantum information across distributed communication networks requires autonomous, measurement-free mechanisms to prevent wave-function collapse.Quantum Sensing and Hamiltonian Learning under Stochastic Parameter Evolution
We introduce the notion of stochastically evolving Hamiltonians (SEHs), which are local Hamiltonians whose coefficients are governed by stochastic differential equations (SDEs).