Quantum-enhanced sensing in a driven-dissipative system via chiral waveguideQuantum sensors can achieve precision unattainable by classical sensors. However, dissipation coming from interaction with the environment can greatly degrade the performance of quantum sensors.…Yan Xi Foo, Saubhik Sarkar, Leong Chuan Kwek et al.·Aug 24, 2026SaveLearn
Quantifying the dimensionality of multiparticle entanglement via partition rankThe usefulness of entanglement as a resource in quantum technologies increases for larger systems, that is, if more particles or higher-dimensional quantum systems are considered. Yet, the interplay…Sophia Denker, Ismaël Septembre, Robin Krebs et al.·Aug 24, 2026SaveLearn
Exact Fock-State Preparation with n1/4 Circuit DepthEfficient, deterministic, and high-fidelity preparation of large Fock states is essential for scaling bosonic quantum technologies and exploring quantum phenomena at large excitation energies. We…Tanay Roy·Aug 24, 2026SaveLearn
Dual-Isotope Sympathetic Cooling in a Long Ion ChainOwing to their high controllability and connectivity, one-dimensional ion chains are attractive building blocks for near-term quantum computers. However, long ion chains are susceptible to motional…Tianyi Wang, Marko Cetina·Aug 24, 2026SaveLearn
Quantum-Geometric Length Scale for Long-distance Squeezing in Bosonic Bogoliubov SystemsMultimode squeezing is a key resource for continuous-variable quantum technologies, but its spatial range in bosonic lattices is usually tied to dispersive propagation. Here we show that parametric…Sonu Verma, Sangmo Cheon, Myung-Joong Hwang et al.·Aug 24, 2026SaveLearn
Entanglement-enhanced fluctuation-free daemonic ergotropy with random measurementsOptimized daemonic ergotropy can make entanglement thermodynamically dispensable in measurement-assisted work extraction: for a fixed system marginal, quantum-classical states can reproduce the…Saptarshi Roy, Pritam Halder, Tamal Guha et al.·Aug 24, 2026SaveLearn
Efficient Computation of QKD Key Rates without Semidefinite ProgrammingTranslating observed data into a reliable estimate of the secure key rate is a crucial step for operating a quantum key distribution device. We provide a computational method for this task that only…Bence Temesi, Antoine Gansel, Gereon Koßmann et al.·Aug 24, 2026SaveLearn
Non-Hermitian Generalization of Bloch Sphere in Spacetime AlgebraWe establish a geometric generalization of the Bloch sphere for two-level quantum systems with non-Hermitian Hamiltonians using the Spacetime Algebra (STA) formulation. By lifting the state density…Chih-Wei Wang·Aug 24, 2026SaveLearn
Quantum Monte Carlo in the Age of Many-Body Quantum InformationQuantum Monte Carlo (QMC) methods are among the central numerical tools for studying strongly correlated quantum many-body systems, particularly in higher dimensions. As quantum information has…Yi-Ming Ding, Bin-Bin Mao, Zheng Yan·Aug 24, 2026SaveLearn
Quantum observables as Fréchet sensitivity kernelsWe present a variational--adjoint interpretation of quantum mechanics in which the interaction between forward and adjoint wavefunctions defines a general sensitivity kernel of the system. This…Rafael Abreu·Aug 24, 2026SaveLearn
Taming Spacetime Overhead and Design Complexity in Distributed Fault-Tolerant Superconducting Quantum ComputationScaling fault-tolerant superconducting quantum computers will likely require distributed architectures built from multiple manufacturable quantum processing units. A central question is whether noisy…Qinjing Yu, Ke Liu·Aug 24, 2026SaveLearn
Efficient Quantum Simulation of Linearized Vlasov--Poisson Dynamics Using Trotter and THRIFT Hamiltonian Simulation MethodsThe Vlasov--Poisson system provides the fundamental kinetic description of plasma and plays a central role in understanding collective phenomena such as Landau damping and wave--particle…Kartick Paul, Rahul V, S. Aravinda et al.·Aug 24, 2026SaveLearn
Quantum Reservoir Computing with Physics-Informed Correction for Reduced-Order PDE ForecastingWe study a hybrid proposal--correction architecture for reduced-order PDE forecasting in which a pure-state quantum reservoir computer (QRC) predicts latent coefficient dynamics and a PINN-based…Krishna Bhatia, Harsh, Shalini Devendrababu·Aug 24, 2026SaveLearn
Dark-Mode Control of Contrasting Entanglement and Bell Nonlocality between Mechanical OscillatorsThis study presents a detailed proposal for an optomechanical system consisting of two mechanical oscillators coupled to a common cavity, aimed at generating pure and entangled two-mode squeezed…Souvik Agasti, Philippe Djorwe, Xin Zhou·Aug 24, 2026SaveLearn
Physics-Guided Linear Mapper for Quantum Error MitigationWe introduce a novel physics-guided linear mapper (PGLM) for quantum error mitigation that uses seven distinct interpretable features derived from circuit complexity and device calibration data. The…Tulsi Chaudhari, Krishna Bhatia, Shalini Devendrababu et al.·Aug 24, 2026SaveLearn
Partial-Moment PINNs for Caldeira--Leggett Parameter Learning in Quantum Brownian MotionWe study parameter recovery in the Caldeira--Leggett (quantum Brownian) oscillator from partial moment traces. Our model is a moment-level PINN that predicts the five first/second moments and…Krishna Bhatia·Aug 24, 2026SaveLearn
What do position and time mean in the quantum wavefunction?The notation ψ(x,t) is among the first pieces of quantum mechanics that students learn. It is also among the easiest to over-interpret. Because x and t occur as arguments of the same function,…Mustafa Bakr, Zichi Zhang, Margot Stakenborg·Aug 24, 2026SaveLearn
A Unified Quantum Neural Network Framework for Hamiltonian Learning and Emulation of Unknown Quantum SystemsAccurate identification of unknown quantum systems is essential for quantum computing, sensing, and control because the Hamiltonian governs quantum state evolution. This work proposes a QNN based…Ahmad Salmanogli·Aug 24, 2026SaveLearn
Exact and Optimal Recursive Quantum Search via Hilbert-Space DecompositionCurrent approaches to quantum search fail to deeply exploit extant structure in the underlying Hilbert space. Decomposing the search by this structure empowers new strategies and formulations for…John Burke, Ciaran McGoldrick·Aug 24, 2026SaveLearn
`It from Bit': is there a second law of quantum complexity?At a deeper level the principle of least action is interpreted as the law of least entropy increase consistent with Prigogine's principle of minimum entropy production, and the implications of…S. Davatolhagh, A. Sheykhi, M. H. Zarei·Aug 24, 2026SaveLearn
Batched and Complete U-Statistics for Trace-Polynomial Estimation from Classical ShadowsWe study estimation of the trace polynomial tr p(PρP) from global classical shadows, where ρ is an unknown quantum state and P is a fixed projector. Disjoint batching and…Xinyu Song·Aug 24, 2026SaveLearn
Universal equilibrium magic in quantum many-body systemsThermalization conventionally describes local properties of isolated many-body systems at equilibrium. Magic, or nonstabilizerness x2013 the resource enabling universal quantum…Soumyadeep Sarma, Tobias Haug, John Preskill et al.·Aug 24, 2026SaveLearn
Geometric Phases of a Driven Qubit: Comparing Berry and Uhlmann HolonomiesThe Berry phase arises naturally from the adiabatic dynamics of a pure quantum state, whereas the Uhlmann phase is usually formulated kinematically for a prescribed path of mixed states. For a qubit…Hyeonseok Yang, Changsuk Noh·Aug 24, 2026SaveLearn
Deterministic Preparation of Arbitrary Spin EigenfunctionsQuantum states with conserved total spins, or spin eigenfunctions, are important for studying quantum chemistry and quantum manybody physics problems. A typical class of spin eigenfunctions are Dicke…Wenxuan Tao, Jianan Wang, Fen Zuo·Aug 24, 2026SaveLearn
Implementation of nonlocal multi-photon interference by mode swappingMulti-photon interference can be observed using independently generated photons as input. In the most simple case, these photons meet up at a beam splitter, resulting in quantum interference between…Holger F. Hofmann, Yuki Kodama, Jonte R. Hance·Aug 24, 2026SaveLearn