Exponential quantum space advantage for Shannon entropy estimation in data streamsNear-term quantum devices with limited qubits motivate the study of space-bounded quantum computation in the data stream model. We show that Shannon entropy estimation exhibits an exponential…Weijun Feng, Yongzhen Xu, Lvzhou Li et al.·Jul 28, 2026SaveLearn
Single-photon-boosted type-I fusion gatesFusion measurements are a key primitive for linear-optical quantum computing and quantum networks. Type-I and type-II fusion gates are widely used to combine small entangled resource states into…A. A. Melkozerov, S. S. Straupe, M. Yu. Saygin·Jul 28, 2026SaveLearn
The Algebraic Landscape of Kochen-Specker Sets in Dimension ThreeWe present a computational survey of Kochen-Specker (KS) uncolorability in three-dimensional Hilbert space across coordinate alphabets drawn from quadratic, cyclotomic, golden-ratio, and cubic Pisot…Michael Kernaghan·Jul 28, 2026SaveLearn
Measurement Induced Asymmetric Entanglement in a Deconfined Quantum Critical Ground StateIn this work, we numerically study the effect of weak measurement on deconfined quantum critical point(DQCP). Particularly, we consider the ground state of an one-dimensional spin 1/2 system with…K. G. S. H. Gunawardana·Jul 28, 2026SaveLearn
Long-Lived Mechanically-Detected Molecular Spins for Quantum SensingQuantum sensors based on individual spins provide unprecedented access to local magnetic fields in condensed matter, chemistry, and biology, with solid-state defect spins emerging as the leading…Sahand Tabatabaei, Pritam Priyadarsi, Daniel Tay et al.·Jul 28, 2026SaveLearn
Engineering the non-Hermitian Su-Schrieffer-Heeger model with skin effects in Rydberg atom arraysWe propose and systematically analyze a practical scheme for implementing a one-dimensional non-Hermitian (NH) Su-Schrieffer-Heeger model using individually addressable Rydberg atom arrays. Our setup…J. N. Bai, F. Yang, D. Yan et al.·Jul 28, 2026SaveLearn
Superradiant Phase is a Finite Size Effect in Two-photon ProcessesTwo-photon light-matter interactions exhibit distinctive features such as spectral collapse. The two-photon Dicke model has been reported to exhibit a superradiant phase which could be useful in…Fabrizio Ramírez, David Villaseñor, Nahum Vázquez et al.·Jul 28, 2026SaveLearn
Protocols for sharing genuine multipartite entanglement by employing copies of biseparable statesSharing genuine multipartite entanglement by considering collective use of copies of biseparable states, which are entangled across all bipartitions but lack genuine multipartite entanglement at the…Swati Choudhary, Ujjwal Sen, Saronath Halder·Jul 28, 2026SaveLearn
Classical Analog Emulation of Quantum Circuits via Time-Averaged Dynamic StatesClassical analog hardware that emulates quantum circuits at the gate level offers a route to benchmarking, prototyping, and teaching quantum algorithms. We introduce wavebits, classical wave analogs…Mathieu Padlewski, Matias Miguel Castillo Valle, Tim Tuuva et al.·Jul 28, 2026SaveLearn
Probabilistic Entanglement Distillation: Error Exponents via Postselected Quantum Hypothesis Testing Against Separable StatesEntanglement distillation is a fundamental task in quantum entanglement theory. While recent progress has clarified limitations of probabilistic transformations in general resource theories, an…Xian Shi·Jul 28, 2026SaveLearn
Bound states and decay dynamics in N-level Friedrichs model with factorizable interactionsConsidering an N-level system interacting factorizably with a continuous spectrum, we derive expressions for the bound states and the dynamical evolution within this single-excitation Friedrichs…Jia-Ming Zhang, Yu Xin, Bing Chen·Jul 28, 2026SaveLearn
Kicked-Ising Quantum BatteryEntanglement has been identified as a key resource for enhancing charging performance in quantum batteries. We show that the kicked-Ising model at the self-dual point provides an explicit charging…Sebastián V. Romero, Xi Chen, Yue Ban·Jul 28, 2026SaveLearn
Nonlinearity and Quantum Metrology in the Double-Morse PotentialWe address the nonlinear properties of the double-Morse potential as a resource for single-mode quantum states due to its double-well structure and anharmonicity. We obtain analytical expressions for…Firoz Chogle, Berihu Teklu, Jorge Zubelli et al.·Jul 28, 2026SaveLearn
Unclonable Cryptography in Linear Quantum MemoryQuantum cryptography is a rapidly-developing area which leverages quantum information to accomplish classically-impossible tasks. In many of these protocols, quantum states are used as long-term…Omri Shmueli, Mark Zhandry·Jul 28, 2026SaveLearn
The Practicality of Randomized Quantum Linear Systems SolversRandomized quantum algorithms have been proposed for quantum linear algebra with the goal of constructing shallower circuits than methods based on block encodings, and have been speculated to offer…Siddharth Hariprakash, Roel Van Beeumen, Katherine Klymko et al.·Jul 28, 2026SaveLearn
Robust Superradiance and Spontaneous Spin Ordering in Disordered Waveguide Quantum ElectrodynamicsWe study the collective emission of a disordered array of N excited two-level atoms into a one-dimensional photonic waveguide. In the perfectly ordered case, where atoms are spaced by exact integer…Xin H. H. Zhang, Daniel Malz, Peter Rabl·Jul 28, 2026SaveLearn
A resource theoretical unification of Mpemba effects: classical and quantumThe Mpemba effect originally referred to the observation that, under certain thermalizing dynamics, initially hotter samples can cool faster than colder ones. This effect has since been generalized…Alessandro Summer, Mattia Moroder, Laetitia P. Bettmann et al.·Jul 28, 2026SaveLearn
Prescriptive preparation and verification of nonstabilizer statesHigh-fidelity quantum state preparation is a central task in quantum information science. In practice, it is commonly guided either by full quantum state tomography, which becomes prohibitively…Jian Li, Ye-Chao Liu, Xiao-Xiao Chen et al.·Jul 28, 2026SaveLearn
End-to-End Quantum Algorithms for the Jones PolynomialWe present an end-to-end algorithmic pipeline where a noisy digital quantum computer is used to approximate the value of the Jones polynomial at the fifth root of unity for any input link, i.e. a…Tuomas Laakkonen, Enrico Rinaldi, Chris N. Self et al.·Jul 28, 2026SaveLearn
Postmeasurement information and nonlocality of quantum state discriminationIn quantum state discrimination, nonlocality arises when optimal discrimination cannot be achieved using only local operations and classical communication. It has recently been shown that…Jinhyeok Heo, Donghoon Ha, Jeong San Kim·Jul 28, 2026SaveLearn
Anomalous transport in U(1)-symmetric quantum circuitsIn this work we investigate discrete-time transport in a generic U(1)-symmetric disordered model tuned across an array of different dynamical regimes. We develop an aggregate quantity, a circular…Alessandro Summer, Alex Nico-Katz, Shane Dooley et al.·Jul 28, 2026SaveLearn
One for All: Universal Quantum Conic Programming Framework for Hard-Constrained Combinatorial Optimization ProblemsWe present a unified quantum-classical framework for addressing NP-complete constrained combinatorial optimisation problems, generalising the recently proposed Quantum Conic Programming (QCP)…Lennart Binkowski, Tobias J. Osborne, Marvin Schwiering et al.·Jul 28, 2026SaveLearn
Automorphism-Assisted QAOA: A Classical-Estimator Speedup for QAOA Simulation on Graphs with Non-Trivial SymmetryWe present Automorphism-Assisted QAOA (AA-QAOA), an observable-substitution method that accelerates the classical statevector simulation of QAOA on graphs whose automorphism group is non-trivial. For…Vaibhav. N Prakash·Jul 28, 2026SaveLearn
Faster Algorithmic Quantum and Classical Simulations by Corrected Product FormulasHamiltonian simulation using product formulas is arguably the most straightforward and practical approach for algorithmic simulation of a quantum system's dynamics on a quantum computer. Here we…Mohsen Bagherimehrab, Luis Mantilla Calderon, Dominic W. Berry et al.·Jul 28, 2026SaveLearn
Non-commutative optimization problems with differential constraintsNon-commutative polynomial optimization (NPO) problems seek to minimize the state average of a polynomial of some operator variables, subject to polynomial constraints, over all states and operators,…Mateus Araújo, Andrew J. P. Garner, Miguel Navascues·Jul 28, 2026SaveLearn