Quantum phase transitions of the Cavity Heisenberg spin-chainThe interplay between quantum criticality and ergodicity breaking constitutes a central challenge in complex quantum many-body systems. Here, we investigate ground-state quantum phase transitions…Lv-Ting Gong, Shao-Fan He, Fu-Quan Dou·Sep 1, 2026SaveLearn
Fast Microwave-free State Preparation and Measurement of Superconducting QubitsFast, high-fidelity, scalable state preparation and measurement is critical to the realization of a quantum computing system. The state-of-the-art methods for preparation and readout of…R. Abraham, F. Amet, P. Anderson et al.·Sep 1, 2026SaveLearn
Completing or Refusing Low-Dimensional Records of Structured Quantum Circuits: Measurement Loss, Compression Loss, and Hardware DriftStructured quantum circuits are often represented by low-dimensional records such as occupation numbers or constraint feasibility rather than by full outcome distributions. A record loses…Gunhee Cho, Juhee Lee·Sep 1, 2026SaveLearn
Emerging Personas and Tools for Hybrid Quantum-HPC SystemsQuantum computing is entering an era where quantum processing units (QPUs) with tens to hundreds of qubits are increasingly integrated with high-performance computing (HPC) systems to support hybrid…Eun-Kyung Lee, Jessie Yu, Claudio Carvalho et al.·Sep 1, 2026SaveLearn
A Scalable Multi-Protocol Platform for Quantum Key Distribution Simulation with Rigorous Statistical EvaluationQuantum Key Distribution (QKD) offers information- theoretically secure key establishment grounded in the laws of quantum physics, yet its practical reach is limited by the prohibitive cost of…Anuj Rathore, Kartick Sutradhar·Sep 1, 2026SaveLearn
Dynamical regimes of QAOA gradient responseCharacterizing the trainability of the Quantum Approximate Optimization Algorithm (QAOA) requires understanding how its gradient landscape changes across circuit parameters and problem size. Yet…Zarin Shakibaei, Alexander Schnell·Sep 1, 2026SaveLearn
A nonabelian anyon violates Haag dualityWe show that a superselction sector describing a single nonabelian anyon violates Haag duality, which is equivalent to the fundamental quantum-information theoretic principle of uniqueness of…Daniel Wallick, Henrik Wilming·Sep 1, 2026SaveLearn
DF-SQD: Deterministic Fields for Sampling-Based Quantum DiagonalizationSampling-based quantum diagonalization method exploits Quantum-centric supercomputing platforms to sample bitstrings for Hamiltonian projection on a quantum computer, and then classically diagonalize…Kushagra Agarwal, Anupama Ray·Sep 1, 2026SaveLearn
A Backend-Agnostic MWIS Kernel for Stochastic Unit Commitment with Neutral-Atom Hardware ValidationQuantum hardware is beginning to address structured combinatorial optimisation, but two steps still block practical use: mapping real operational models onto hardware-compatible instances, and…Jiying Chen, Min Lin, Jingwei Wen et al.·Sep 1, 2026SaveLearn
Unbiased sampling from Boltzmann distributions with noisy energiesSampling from the Boltzmann distribution is central to computational physics, yet hard when the energy is known only through a stochastic estimate, such as with machine-learned molecular potentials,…Iwo Sanderski, Gian Gentinetta, Giuseppe Carleo·Sep 1, 2026SaveLearn
Quantum time-flip beats adaptive metrology: Asymptotic benefit, activation, and unsimulabilityIn quantum metrology, adaptive and causal-superposition strategies are proven to be beneficial over parallel schemes for a finite number of channel uses, but their advantages disappear in the…Gaurang Agrawal, Pritam Halder, Aditi Sen De·Sep 1, 2026SaveLearn
A continuous-mode quantum-optical representation of finite strong-field laser pulses in free spaceWe formulate an energy-consistent quantum-optical representation of finite paraxial laser pulses in free space. The formulation is based on a continuous-mode description and provides a step toward a…Szabolcs Hack, Attila Czirják, Péter Földi·Sep 1, 2026SaveLearn
Scattering and Tunneling in Real Quantum MechanicsWe establish the general form of the evolution equation and study scattering and tunneling in real quantum mechanics. We prove an analogue of Stone's theorem for a real Kahler space and derive…Firdevs Karakus, Daniil Stepanenko, Igor Volovich·Sep 1, 2026SaveLearn
Tangent fermions can restore vacuum stability of discrete-time Dirac modelsThe Dirac quantum walk (a 1+1 dimensional space-time discretization of the Dirac equation) has a 2μ mass gap both at the center and at the corner of the quasi-energy-momentum Brillouin zone. Gupta…C. W. J. Beenakker·Sep 1, 2026SaveLearn
Photonic fusion operations transform partial distinguishabilityPhotonic fusion operations are a central primitive in photonic quantum information processing and are commonly characterized by their success probability and resource cost. Here, we identify an…S. N. van den Hoven, G. B. Lamers, J. J. Renema·Sep 1, 2026SaveLearn
Nonlocal wavefront shaping through complex mediaWavefront shaping is a key technique for mitigating scattering in complex media, enabling advanced imaging and optical communication. Yet existing approaches are inherently local, requiring active…Yanis Trouyet, Neelan Gounden, Pedro Ornelas et al.·Sep 1, 2026SaveLearn
Uniform Hiding and Two Routes to Relative Accuracy in Gaussian Boson SamplingGaussian boson sampling requires control of how closely finite optical matrices follow Gaussian reference laws. We prove an explicit total variation bound of order N2/M between a rescaled Haar…Hongru Zhao·Sep 1, 2026SaveLearn
Information geometry of non-equilibrium quantum states: Mixed metric structures on an extended information manifoldWe discuss an information-geometric framework for characterizing quantum states in non-equilibrium dynamics. Using the transverse-field Ising chain model as a laboratory, we investigate the quantum…Kouji Kashiwa, Hidefumi Matsuda·Sep 1, 2026SaveLearn
Robust CZ gate against flux line memoryHigh-fidelity CZ gates are central to superconducting quantum processors, but implementations based on flux tuning are still sensitive to pulse distortion. Conventional predistortion, typically used…Yao Song, Xiu-Hao Deng·Sep 1, 2026SaveLearn
Thermal screening and critical scaling of quantum energy teleportation in a harmonic chainWe develop a finite-temperature Gaussian-state formulation of quantum energy teleportation in the one-dimensional harmonic chain. For Gibbs states, the optimized measurement-feedback protocol reduces…Taisanul Haque·Sep 1, 2026SaveLearn
Towards Natural Gas Contract Selection via Quantum-Guided Independent Set ReductionSelecting mutually compatible natural gas transportation contracts is a practically important optimization task in which operators must choose from many candidate agreements subject to temporal,…Vivek Dixit, Vaibhaw Kumar, Kentaro Ohno et al.·Sep 1, 2026SaveLearn
Structure-Aware Placement and Routing of Multi-Controlled Toffoli on Bivariate Bicycle Code ArchitecturesThe multi-controlled Toffoli (MCT) gate is a fundamental primitive in quantum circuit design, with applications in quantum arithmetic, cryptanalysis, and algorithmic implementations. Being a…Anik Basu Bhaumik, Suman Dutta, Siyi Wang et al.·Sep 1, 2026SaveLearn
Ontic and epistemic states in the theory of spacetime-local beablesBell's theorem rules out developing a locally causal theory to describe quantum phenomena. Many take this to imply that any model of quantum entanglement must employ variables (called beables by…Nathan Argaman·Sep 1, 2026SaveLearn
Quantum-Based Optimization of Gas Throughput in Natural Gas Transmission Networks Under Hydraulic Constraints Using QAOAMaximizing gas throughput in transmission networks under hydraulic and operational constraints is a combinatorial problem whose complexity grows exponentially with network size, making it…Alex Ben Ishay, Yuval Eyal, Yuval Cohen et al.·Sep 1, 2026SaveLearn
High-Rank Encoding Can Improve Approximate Quantum Error CorrectionConventional quantum-code constructions encode pure logical states as pure code states, but this restriction can sacrifice performance. We show that intrinsic encoding randomness can improve optimal…Bikun Li, Liang Jiang·Sep 1, 2026SaveLearn