Medusa: Detecting and Removing Failures for Scalable Quantum ComputingQuantum circuits will experience failures that lead to computational errors. We introduce Medusa, an automated compilation method for lowering a circuit's failure rate. Medusa uses flags to…Karoliina Oksanen, Quan Hoang, Alexandru Paler·Jul 22, 2026SaveLearn
Continuous-variable photonic quantum extreme learning machines for fast collider-data selectionWe study continuous-variable photonic quantum extreme learning machines as fast, low-overhead front-ends for collider data processing. Data is encoded in photonic modes through quadrature…Benedikt Maier, Michael Spannowsky, Simon Williams·Jul 22, 2026SaveLearn
Nonlinear photonic architecture for fault-tolerant quantum computingWe propose a novel architecture for fault-tolerant quantum computing that incorporates strong single-photon nonlinearities into a photonic GHZ-measurement-based architecture. The nonlinearities…Maike Ostmann, Joshua Nunn, Alex E. Jones·Jul 22, 2026SaveLearn
Diagonalizing large-scale quantum many-body Hamiltonians using variational quantum circuit and tensor networkExact diagonalization (ED) provides complete access to many-body eigenenergies and eigenstates, yet its exponential cost confines it to small systems. We propose tensor network variational…Peng-Fei Zhou, Shuang Qiao, An-Chun Ji et al.·Jul 22, 2026SaveLearn
Hamiltonian Expressibility for Ansatz Selection in Variational Quantum AlgorithmsIn the context of Variational Quantum Algorithms (VQAs), selecting an appropriate ansatz is crucial for efficient problem-solving. Hamiltonian expressibility has been introduced as a metric to…Filippo Brozzi, Gloria Turati, Maurizio Ferrari Dacrema et al.·Jul 22, 2026SaveLearn
Observation of period doubling and higher multiplicities in a driven single-spin systemOne of the prime features of quantum systems strongly driven by external time-periodic fields is the subharmonic response with integer multiples of the drive period k\, Td due to long-lived…Dhruv Deshmukh, Raúl B. González, Roberto Sailer et al.·Jul 22, 2026SaveLearn
Is Lindblad for me?The Lindblad master equation is a foundational tool for modeling the dynamics of open quantum systems. As its use has extended far beyond its original domain, the boundaries of its validity have…Martino Stefanini, Aleksandra A. Ziolkowska, Dmitry Budker et al.·Jul 22, 2026SaveLearn
Probing the Dynamics of Two-Level System Defect Ensembles via Broadband Cryogenic Transient Dielectric SpectroscopyTwo-level system (TLS) defects in dielectrics are a major source of decoherence in superconducting circuits, yet their microscopic origin and distribution remain poorly understood. Existing…Qianxu Wang, Juan S. Salcedo-Gallo, Sara Magdalena Gómez et al.·Jul 22, 2026SaveLearn
Work and heat exchanged during sudden quenches of strongly coupled quantum systemsHow should one define thermodynamic quantities (internal energy, work, heat, etc.) for quantum systems coupled to their environments strongly? We examine three (classically equivalent) definitions of…Zohreh Davoudi, Christopher Jarzynski, Niklas Mueller et al.·Jul 22, 2026SaveLearn
Information geometry of bosonic Gaussian thermal statesBosonic Gaussian thermal states form a fundamental class of states in quantum information science. This paper explores the information geometry of these states, focusing on characterizing the…Zixin Huang, Mark M. Wilde·Jul 22, 2026SaveLearn
Coherence-generating power deviation: Fluctuations and input selectivity beyond average coherence generationCoherence-generating power (CGP) tells how much coherence a quantum process produces on average from incoherent inputs, but an average can hide where that coherence comes from. We introduce the…Kyoungho Cho, Jeongho Bang·Jul 21, 2026SaveLearn
Quantum-Classical Fragmentation with the Effective Fragment Molecular Orbital MethodWe present the quantum effective fragment molecular orbital (Q-EFMO) method, a hybrid framework that evaluates selected molecular-fragment correlation energies with the variational quantum…Federico Zahariev, Vassiliki-Alexandra Glezakou, Mark S. Gordon·Jul 21, 2026SaveLearn
Quantum-Classical Effective Fragment Potential Embedding for Condensed-Phase Quantum ChemistryQuantum simulation of chemistry in realistic environments is constrained by the orbital cost of explicit solvent, ions, and other surroundings. We present the quantum-classical effective fragment…Federico Zahariev, Vassiliki-Alexandra Glezakou, Mark S. Gordon·Jul 21, 2026SaveLearn
On Solutions of the Killingbeck Potential and Clarifying Comments on a Related Analytical ApproachThe work presents analytical solutions to the Schrodinger equation for the Killingbeck potential, a Hybrid model combining harmonic, linear and Coulomb terms, and which is also an approximate model…Fatma Zohra Khaled, Mustafa Moumni, Mokhtar Falek·Jul 21, 2026SaveLearn
Quantum Gravity Simulation: Quantum simulation with a minimum length based on the generalised uncertainty principleWe present a recipe for simulating one-dimensional quantum systems for low and high energies with L qubits within the framework of first quantisation. Assuming a minimum grid spacing ΔL in the…Jack Keable-Elliott, David J. Bacon, Andrew Burbanks et al.·Jul 21, 2026SaveLearn
Bound states of the hydrogen-like atomic systems in plasma environmentsWe conduct a non-relativistic study of plasma screening effects on hydrogen-like atomic systems using the Screened Coulomb Potential (SCP i.e. Yukawa potential). The radial Schrödinger equation is…Fatma Zohra Khaled, Mustafa Moumni, Mokhtar Falek·Jul 21, 2026SaveLearn
Intelligent qubitsWe introduce the method of ``intelligent qubits,'' which replace live observers in Wigner's friend and Frauchiger--Renner thought experiments, in order to expose the source of the…Alexander Givental·Jul 21, 2026SaveLearn
Measurement-Selective Dynamical Symmetry BreakingContinuous measurement is commonly associated with decoherence and the loss of symmetry. Here, we show that weak continuous measurements can instead act selectively: depending on the measured…Polina Kofman, Elvira Bilokon, Valeriia Bilokon et al.·Jul 21, 2026SaveLearn
Rank-Adaptive Matrix-Free Atomic Quantum State TomographyQuantum state tomography estimates an unknown density operator from measurement data. Dense reconstruction however, can be impractical for many-qubit systems because the Hilbert-space dimension grows…Amirhossein Taherpour, Alireza Sadeghi, Georgios B. Giannakis·Jul 21, 2026SaveLearn
Quantum codes from classical annealingWe introduce an adaptive simulated annealing algorithm to search for moderately-sized quantum error-correcting codes with high encoding rates and large distances. Our search targets two classes of…Michael A. Perlin, Matthew Steinberg, Ben Criger·Jul 21, 2026SaveLearn
Machine-learned syndrome post-selection for reliable quantum error correctionQuantum error correction can be enhanced by post-selecting out runs that are likely to produce a logical failure, but the most accurate measures for that require costly decoder-level information. We…Tobias Haug, Askery Canabarro, Leandro Aolita·Jul 21, 2026SaveLearn
Simple, accurate lumped-element models of distributed resonators for superconducting quantum circuitsSuperconducting quantum circuit design is reliant on accurately mapping design parameters to a quantum Hamiltonian. Designers typically rely on computationally intensive finite-element…Elizabeth H. Kunz, Eli M. Levenson-Falk·Jul 21, 2026SaveLearn
High-purity entanglement mediated by magnons despite weak couplingEntangling distant spins via a shared magnonic bus typically faces a tradeoff: stronger spin-magnon coupling increases the entanglement fidelity, but also the spin decay rate. We propose a protocol…Sanchar Sharma·Jul 21, 2026SaveLearn
Hybrid LLM-Guided Search for Quantum Reservoir Architecture DesignQuantum reservoir computing (QRC) uses fixed quantum dynamics as a high-dimensional temporal feature map and trains only a lightweight classical readout. QRC is attractive for near-term quantum…Krishna Bhatia, Gautami Sanjay Naik·Jul 21, 2026SaveLearn
A unified framework for anomalous boson bunchingAnomalous bunching is a paradoxical quantum interferometric phenomenon in which partially distinguishable photons exhibit a higher probability of bunching into two or more modes than fully…Léo Pioge, Leonardo Novo, Nicolas J. Cerf·Jul 21, 2026SaveLearn