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 173
I Prove, Therefore I Am: Spatiotemporal Multi-Party Computation
Secure multiparty computation (MPC) enables mutually distrustful parties to compute on private digital inputs.Hilbert-space fragmentation selects channels of strong-to-weak spontaneous symmetry breaking
Strong-to-weak spontaneous symmetry breaking (SWSSB) can occur in a maximally mixed charge sector even when ordinary charged correlations vanish.Quantum Fisher information of driven-dissipative systems from Keldysh path integrals
Driven-dissipative many-body quantum systems can be exploited in quantum enhanced sensing protocols.Tensor Network Simulation of Dynamic Circuits
Dynamic circuits, which incorporate mid-circuit measurements and classically controlled operations, extend the expressive power of quantum programs and are central to applications such as quantum…Neural Network Backflow with Low-Rank Multi-Determinant Updates
Simulating strongly correlated fermions remains a long-standing challenge due to the exponential complexity of the Hilbert space and the intricate sign structure of many-body wavefunctions.Magnetic tuning of quantum backflow: Schrödinger vs Pauli system
Probability backflow is investigated for charged spin-$1/2$ particles in a uniform magnetic field within the lowest-Landau-level approximation.Power-resolved ergotropy and correlation redistribution in a bosonic quantum battery driven by a coherent-state superposition
Ergotropic-gap relations provide thermodynamic witnesses of quantum correlations, but a direct dynamical connection between extractable work and entanglement remains largely unexplored in…Preselection-Encoded Weak-Value Interferometry for Optical-Rotation Metrology
Optical-rotation measurements benefit from increasing probe photon number, but their performance is often limited by detector saturation and technical noise in the optical readout.A New Method For Manipulating Circuits, Application To Quantum Adders
We use a new technique for manipulating controlled quantum circuits to convert between two distinct types of quantum adders, one based on the Quantum Fourier Transform and the other based on the…Hamiltonian Learning and Certification via Eigenphase Engineering
We study Hamiltonian learning for $k$-local Hamiltonians at large step size, using only forward time evolution at integer multiples of a fixed time interval.Geometric construction of optimal probe states in distributed multiparameter quantum sensing
The choice of probe state is essential to achieving ultimate precision in quantum metrology.Error Correction Properties of Covariant Bosonic Encodings
Bosonic codes offer a promising approach towards hardware-efficient fault tolerance, with many leading examples such as the cat-code and the GKP code organized by an underlying symmetry.Fluctuation-Driven Nonlinear Amplification of Quantum Statistics
Photon statistics have moved to the forefront of modern optics, as intensity fluctuations and correlations shape multiphoton interactions and reveal information beyond mean-intensity measurements.Strong matchgate designs in nearly optimal depth
Understanding the resources required to generate approximately random unitaries over various groups is a natural goal of quantum information theory.Strong Selective and List-Decoding Direct Product Theorems for Quantum Query Complexity
Quantum strong direct-product theorems for specific functions have been known for nearly two decades.Transversal non-Clifford gates on good quantum locally testable codes
We achieve nontrivial transversal logical multi-controlled-$Z$ gates with asymptotically optimal parameters simultaneously on quantum low-density parity check codes and quantum locally testable…When are bosonic Gaussian states classical to learn?
A fundamental question in physics is: When does classical behavior emerge from quantum systems?A quantum lower bound for path finding in welded trees
In the welded tree problem, an algorithm is tasked with navigating a graph formed from two binary trees joined at the leaves through a ``weld'' of connecting edges.Evidence for a low-gap component in compressively stressed niobium thin films
We investigate the microwave response of sputtered Nb films as a function of biaxial film stress.Good Quantum Locally Testable Codes from Product Expansion
We construct quantum locally testable codes (LTCs) with constant rate, distance, soundness and locality under a variant of a product expansion conjecture of Bafna and Vyas about Reed-Solomon codes.