Can classical theories of gravity produce entanglement?A recent paper published in Nature [Nature,646,813(2025)] claims that quantum particles become entangled through their gravitational interaction, even when the gravitational potential is classical.…Anirudh Gundhi, Giorgia Infantino, Angelo Bassi·Aug 7, 2026SaveLearn
Operator-Valued Hardy Spaces and Kramers--Kronig Relations for Non-Markovian Quantum Memory KernelsRetarded support, upper-half-plane holomorphy, and Hardy boundary control are distinct properties of a memory kernel. We give sufficient conditions linking them for the Nakajima--Zwanzig kernel of an…Kejun Liu·Aug 7, 2026SaveLearn
Causality is rare: some topological properties of causal quantum channelsSorkin's impossible operations demonstrate that causality of a quantum channel in QFT is an additional constraint on quantum operations above and beyond the locality of the channel. What has not…Robin Simmons·Aug 7, 2026SaveLearn
Quantum inference on a classically trained quantum extreme learning machineQuantum extreme learning machines (QELMs) are unconventional computing architectures that bear remarkable promise in both classical and quantum machine-learning tasks, such as the estimation of…Emanuele Brusaschi, Marco Clementi, Marco Liscidini et al.·Aug 7, 2026SaveLearn
Approximate Reduced Lindblad Dynamics via Algebraic and Adiabatic MethodsWe present an algebraic framework for approximate model reduction of Markovian open quantum dynamics that guarantees complete positivity and trace preservation by construction. First, we show that…Tommaso Grigoletto, Alain Sarlette, Francesco Ticozzi et al.·Aug 7, 2026SaveLearn
Exact Semiclassical Dynamics in a Multidimensional Quartic Potential: Multi-Flavor Instantons and Pre-Factor Dominance at Strong CouplingWe present an exact semi-classical analysis of a coupled multi-degree-of-freedom quantum system governed by a symmetric quartic potential with four degenerate minima. Starting from the Euclidean path…Pervez Hoodbhoy, M. Haashir Ismail, M. Mufassir·Aug 7, 2026SaveLearn
Efficient Operator Selection and Warm-Start Strategy for Excitations in Variational Quantum EigensolversWe present a novel approach for efficient preparation of electronic ground states, leveraging the optimizer ExcitationSolve [Jäger et al., Comm. Phys. (2025)] and established variational quantum…Max Haas, Thierry N. Kaldenbach, Thomas Hammerschmidt et al.·Aug 7, 2026SaveLearn
Impulsively Driven Fractional Relaxation: Exact Response, Scaling Laws, Frequency-Domain Signatures, and Memory-Induced Crossover StructuresWe investigate periodically impulsive fractional relaxation as a minimal model of nonlocal dissipative dynamics under repeated external stimulation. The free relaxation law is classical, but the…Koichi Nakagawa·Aug 7, 2026SaveLearn
Upper bounds on the purity of Wigner positive quantum states that verify the Wigner entropy conjectureWe present analytical results toward the Wigner entropy conjecture, which posits that among all physical Wigner non-negative states the Wigner entropy is minimized by pure Gaussian states for which…Qipeng Qian, Christos Gagatsos·Aug 7, 2026SaveLearn
Quantum phase estimation with optimal confidence interval using three control qubitsQuantum phase estimation is an important routine in many quantum algorithms, particularly for estimating the ground state energy in quantum chemistry simulations. This estimation involves applying…Kaur Kristjuhan, Dominic W. Berry·Aug 7, 2026SaveLearn
A 1-bit quantum filter for particle trajectory reconstructionThe transition to the High-Luminosity Large Hadron Collider (HL-LHC) presents a computational challenge where particle reconstruction complexity may outpace classical computing resources. While…Xenofon Chiotopoulos, Davide Nicotra, George Scriven et al.·Aug 7, 2026SaveLearn
A Joint Quantum Computing, Neural Network and Embedding Theory Approach for the Derivation of the Universal FunctionalWe introduce a novel approach that exploits the intersection of quantum computing, machine learning and reduced density matrix functional theory to leverage the potential of quantum computing to…Martin J. Uttendorfer, Daniel Barragan-Yani, Matthias Sperl et al.·Aug 7, 2026SaveLearn
Deep Thermalization and Measurements of Quantum ResourcesQuantum resource theories provide a unified framework for characterizing useful quantum phenomena subject to physical constraints but are notoriously hard to assess in experimental systems. In this…Naga Dileep Varikuti, Soumik Bandyopadhyay, Philipp Hauke·Aug 7, 2026SaveLearn
Pattern Based Stabilizer TripwareThis paper introduces a quantum-classical hybrid key distribution protocol applicable to any stabilizer-based quantum error-correcting code. Named the Pattern-Based Stabilizer Tripwire, the framework…Mehedi Hasan Rumi·Aug 7, 2026SaveLearn
Cost-effective scalable quantum error mitigation for tiled AnsätzeWe introduce a cost-effective quantum error mitigation technique that builds upon the recent Ansatz-based gate and readout error mitigation method (M0). The technique, tiled M0, leverages the unique…Oskar Graulund Lentz Rasmussen, Erik Kjellgren, Peter Reinholdt et al.·Aug 7, 2026SaveLearn
Quantum Secret Sharing Scheme on Hypercyclic Quantum StructuresThis paper investigates the construction of efficient quantum secret sharing schemes for quantum access structures based on hypergraphs with three hyperedges. We prove that hypercycles with three…Lei Li, Zhi Li·Aug 7, 2026SaveLearn
Universal computational super-resolution framework for imaging of quantum dotsWe present a universal deep-learning method that reconstructs super-resolved images of quantum emitters from a single camera frame measurement. Trained on physics-based synthetic data spanning…Dominik Vašinka, Jaewon Lee, Charlie Stalker et al.·Aug 7, 2026SaveLearn
Constraints on Atomistic Disorder for Scalable Electron Spin ShuttlingElectron spin shuttling, the gate-controlled, coherent transport of electrons between qubit registers, increases qubit connectivity and enables efficient quantum-error-correction schemes. It is…Raphaël J. Prentki, Pericles Philippopoulos, Mohammad Reza Mostaan et al.·Aug 7, 2026SaveLearn
Quantum Kramers-Henneberger TransformationThe classical Kramers-Henneberger transformation connects, via a series of unitary transformations, the dynamics of a quantum particle of mass m located in a trap at position α(t), with the…Javier Argüello-Luengo, Javier Rivera-Dean, Philipp Stammer et al.·Aug 7, 2026SaveLearn
Entanglement Breaking Structure of Cartan-Covariant Quantum ChannelsCartan-covariant quantum channels are introduced and studied using the Choi-Jamiołkowski isomorphism. The channels are Cartan-covariant as the covariance groups considered form symmetric pairs with…Sean Prudhoe·Aug 7, 2026SaveLearn
Classifying Multipartite Continuous Variable Entanglement Structures through Data-augmented Neural NetworksNeural networks have emerged as a promising paradigm for quantum information processing, yet they confront the challenge of generating training datasets with sufficient size and rich diversity, which…Xiaoting Gao, Mingsheng Tian, Feng-Xiao Sun et al.·Aug 7, 2026SaveLearn
Positive and non-positive measurements in energy distillation from quantum batteriesWe investigate energy distillation from quantum batteries within the framework of generalized quantum measurements, including both positive operator-valued measurements (POVMs) and physically…Paranjoy Chaki, Aparajita Bhattacharyya, Kornikar Sen et al.·Aug 7, 2026SaveLearn
Preparing general mixed quantum states on quantum computersThe preparation of quantum states is a fundamental subroutine for a broad class of quantum information protocols and is critical for both quantum communication and quantum computation. Building upon…Lucas Friedrich, Douglas F. Pinto, Diego S. Starke et al.·Aug 7, 2026SaveLearn
Quantum Generative Diffusion Model: A Fully Quantum-Mechanical Model for Generating Quantum State EnsembleMixed quantum states are the native description of many physically important quantum systems, making their generation a fundamental task in quantum information processing. However, constructing a…Chuangtao Chen, Qinglin Zhao, MengChu Zhou et al.·Aug 7, 2026SaveLearn
Optimal Temporal Hiding in Correlated Quantum Reference-Frame ProcessesA finite group-valued temporal reference frame defines a correlated random-unitary process rather than a list of independent channels. We identify a regime in which its complete trajectory law is an…Maxim V. Churilov·Aug 6, 2026SaveLearn