Mitigating Classical Resource Costs in Quantum Error Correction via Generalized qLDPC PredecodingLarge-scale fault-tolerant quantum computing (FTQC) will require quantum-classical interfaces (QCIs) that orchestrate real-time decoding over thousands to millions of logical qubits simultaneously.…Alexander Knapen, Junyi Luo, Guanchen Tao et al.·Aug 3, 2026SaveLearn
Understanding the effects of competing spin-pair dephasing pathways in molecular spinsMolecular spins offer promise in emerging quantum technologies such as quantum sensing and computing. At low temperatures, nuclear spin-spin interactions affect electron spin coherence lifetimes…Timothy J. Krogmeier, James Bradley, Anthony W. Schlimgen et al.·Aug 3, 2026SaveLearn
New non-Euclidean neural quantum states from hyperbolic Lorentz recurrent architecturesIn this work, we construct new non-Euclidean neural quantum states (NQS) based on hyperbolic Lorentz recurrent architectures (RNN/GRU). These constructions, together with the Poincare RNN NQS also…H. L. Dao·Aug 3, 2026SaveLearn
Dissipation-protected energy storage in interacting multilevel quantum batteriesDark and subradiant states have emerged as a promising resource for stabilizing open quantum batteries against dissipation, but existing studies are largely limited to qubit ensembles and…Yiğit Perçin, Özgür E. Müstecaplıoğlu·Aug 3, 2026SaveLearn
Scrambling of Entanglement from Integrability to Chaos: Bootstrapped Time-Integrated Spread ComplexityA physical relationship for the combination of scrambling via spread complexity and entanglement is characterized by the fidelity of quantum unitary dynamics. Time-integrated quantities for the…M. Süzen·Aug 3, 2026SaveLearn
Taming Trotter Errors with Quantum ResourcesQuantum simulation is a cornerstone application of quantum computing, yet how fundamental quantum resources--entanglement and non-stabilizerness (``magic")--shape simulation fidelity remains an…Xiangran Zhang, Jue Xu, Qi Zhao et al.·Aug 3, 2026SaveLearn
QARIMA: A Quantum Approach To Classical Time Series AnalysisWe present QARIMA, a quantum state-similarity-based reconstruction of the classical ARIMA modelling pipeline. Rather than using a quantum circuit as a standalone forecaster, QARIMA preserves…Nishikanta Mohanty, Bikash K. Behera, Badshah Mukherjee et al.·Aug 3, 2026SaveLearn
Estimation of trace distance between two arbitrary quantum statesWhen it comes to discriminating between two quantum states, trace distance is one of the well-known metrics used in quantum computation and quantum information theory. While there are several quantum…Sanchita Ghosh, Anumita Mukhopadhyay, Anindita Bera et al.·Aug 3, 2026SaveLearn
Effects of monitoring on entanglement dynamics for 1+1D Z2 lattice gauge theoryThe (1+1)-dimensional Z2 gauge theory is the simplest model that allows for quantum simulation to probe the fundamental aspects of a gauge theory coupled with dynamical fermions. To…Nilachal Chakrabarti, Nisa Ara, Neha Nirbhan et al.·Aug 3, 2026SaveLearn
Quantum speedup from nonclassical polarizationWe develop a framework for identifying nonclassical speedups in systems with polarization, likewise spin degrees of freedom. By confining the dynamics to the manifold of angular momentum coherent…Tim Aßbrock, Jan Sperling, Laura Ares·Aug 3, 2026SaveLearn
Accurate ground state energy estimation with noise and imperfect state preparationWe introduce a classical estimator for the post-processing of quantum phase estimation (QPE) data when a single target phase is isolated within a known interval, as is typical of ground state energy…Alicja Dutkiewicz, Thomas E. O'Brien, Stefano Polla·Aug 3, 2026SaveLearn
Enhanced Emission from Boron-Vacancy Center in Rhombohedral Boron NitrideBoron nitride is a layered crystal whose properties depend on how its atomic sheets are stacked. Its negatively charged boron vacancy is a well-established magnetic defect that can be prepared and…Nasrin Estaji, Ismaeil Abdolhosseini Sarsari, Gergő Thiering et al.·Aug 3, 2026SaveLearn
Local and Multi-Scale Strategies to Mitigate Exponential Concentration in Quantum KernelsFidelity-based quantum kernels provide a direct interface between quantum feature maps and classical kernel methods, but they can exhibit exponential concentration: with increasing system size or…Claudia Zendejas-Morales, Debashis Saikia, Utkarsh Singh·Aug 3, 2026SaveLearn
Quantum Steering and Entanglement in a Tritter: Hierarchy under LossWe present a comprehensive phase diagram of quantum correlations in a three-mode Gaussian state generated by a tritter, driven by a two-mode squeezed vacuum and a coherent state. The coherent…Jifeng Sun, Shumin Yang, Teng Zhao et al.·Aug 3, 2026SaveLearn
Canonical Quantization of Cylindrical Waveguides: A Gauge-Based ApproachWe present a canonical quantization of electromagnetic modes in cylindrical waveguides, extending a gauge-based formalism previously developed for Cartesian geometries [1]. By introducing the two…Alexandre Delattre, Eddy Collin·Aug 3, 2026SaveLearn
Native Non-Clifford Gates in Quantum LDPC Codes: Conditions, Synthesis, and Scaling LimitsNative constant-depth non-Clifford gates on quantum low-density parity-check (qLDPC) codes can substantially reduce the space-time overhead of magic-state distillation. This paper investigates the…Mohammad Rowshan·Aug 3, 2026SaveLearn
Searching for Quantum Effects in the Brain: A Bell-Type Test for Nonclassical Latent Representations in AutoencodersWhether neural information processing is entirely classical or involves quantum-mechanical elements remains an open question. Here we propose a model-agnostic, information-theoretic test of…I. K. Kominis, C. Xie, S. Li et al.·Aug 3, 2026SaveLearn
Tight bounds on recurrence time in closed quantum systemsThe evolution of an isolated quantum system inevitably exhibits recurrence: the state returns to the vicinity of its initial condition after finite time. Despite its fundamental nature, a rigorous…Marcin Kotowski, Michał Oszmaniec·Aug 3, 2026SaveLearn
Below-shot-noise capacity in phase estimation using nonlinear interferometersOver the past decade, several schemes for imaging and sensing based on nonlinear interferometers have been proposed and demonstrated experimentally. These interferometers exhibit two main advantages.…Cristofero Oglialoro, Gerard J. Machado, Felix Farsch et al.·Aug 3, 2026SaveLearn
Optical downlink modeling for low-earth-orbit and medium-earth-orbit satellites under atmospheric turbulence with a quantum-state-tomography use caseThis paper presents a comprehensive analysis of the link budget for free-space optical systems involving Low Earth Orbit (LEO) and Medium Earth Orbit (MEO) satellites. We develop a detailed model of…Artur Czerwinski, Jakub J. Borkowski, Maciej Wiśniewski et al.·Aug 3, 2026SaveLearn
Measurement incompatibility in Bayesian multiparameter quantum estimationWe present a comprehensive and pedagogical formulation of Bayesian multiparameter quantum estimation. Within this framework, we analyse the role of measurement incompatibility and establish its…Francesco Albarelli, Dominic Branford, Jesús Rubio·Aug 3, 2026SaveLearn
Zero-Noise Extrapolation via Cyclic Permutations of Quantum Circuit LayoutsIncreasing the utility of currently available Noisy Intermediate-Scale Quantum (NISQ) devices requires developing efficient methods to mitigate hardware errors. In this work we propose a novel Cyclic…Zahar Sayapin, Daniil Rabinovich, Nikita Korolev et al.·Aug 3, 2026SaveLearn
Correlation Lengths for Stochastic Matrix Product StatesWe introduce a general model of stochastically generated matrix product states (MPS) in which the local tensors share a common distribution and form a strictly stationary sequence, without requiring…Lubashan Pathirana, Albert H. Werner·Aug 3, 2026SaveLearn
Quantum Filtering and Stabilization of Dissipative Quantum Systems via Augmented Neural Ordinary Differential EquationsModeling open quantum dynamics without full knowledge of the system Hamiltonian or noise model is a key challenge in quantum control and quantum state estimation. We introduce an Augmented Quantum…Shahid Qamar, Rana Imran Mushtaq, Bo Li et al.·Aug 3, 2026SaveLearn
Ultrahigh threshold nonstabilizer nonlinear quantum error correcting codeWe introduce a novel type of quantum error correcting code, called the spinor code, based on spaces defined by total spin. The code is a nonstabilizer code, and is also a nonlinear quantum error…Maga Grafe, Kaixuan Zhou, Zaman Tekin et al.·Aug 3, 2026SaveLearn