Magic for Hybrid Boson-Fermion Systems: A Grassmann Phase-Space ApproachNon-stabilizerness enables universality beyond Gaussian/Clifford dynamics, yet no resource theory exists for systems combining bosonic and fermionic degrees of freedom. Using the Grassmann approach…Matthieu Sarkis, Pablo Martinez-Azcona, Alexandre Tkatchenko·Jul 30, 2026SaveLearn
Criteria for unbiased estimation: applications to noise-agnostic sensing and quantum channel estimationWe establish the necessary and sufficient conditions for local unbiased estimation in multi-parameter estimation tasks. More specifically, we first consider quantum state estimation, where multiple…Hyukgun Kwon, Kento Tsubouchi, Chia-Tung Chu et al.·Jul 30, 2026SaveLearn
SEQC: Stratify-Elaborate Quantum Compilation Towards Modular Hybrid ArchitecturesAs quantum computing technology matures, the pursuit of performance and scalability has led to the widespread adoption of modular quantum architectures. We expect that the next stage of technological…Mingyoung Jessica Jeng, Nikola Vuk Maruszewski, Mu-Te Lau et al.·Jul 30, 2026SaveLearn
Faster quantum chemistry simulations on a quantum computer with improved tensor factorization and active volume compilationElectronic structure calculations of molecular systems are among the most promising applications for fault-tolerant quantum computing (FTQC) in quantum chemistry and drug design. However, while…Athena Caesura, Cristian L. Cortes, William Pol et al.·Jul 30, 2026SaveLearn
Randomized Benchmarking with Synthetic Quantum CircuitsNoise characterization methods such as randomized benchmarking (RB) are critical for the development of scalable quantum computers. Modern RB protocols for multiqubit systems extract physically…Yale Fan, Riley Murray, Thaddeus D. Ladd et al.·Jul 30, 2026SaveLearn
Promise of Graph Sparsification and Decomposition for Noise Reduction in QAOA: Analysis for Trapped-Ion CompilationsWe develop new approximate compilation schemes that significantly reduce the expense of compiling the Quantum Approximate Optimization Algorithm (QAOA) for solving the Max-Cut problem. Our main focus…Jai Moondra, Phillip C. Lotshaw, Greg Mohler et al.·Jul 30, 2026SaveLearn
Bandwidth-Tunable Quantum Light Source at 1.5 μmQuantum light sources constitute a crucial physical resource for the construction of quantum networks. Despite remarkable recent progress, there remains a lack of systematic investigation into the…Wei Wu, Yun-Ru Fan, Ri-Yao Song et al.·Jul 29, 2026SaveLearn
Noise-resilient and Scalable Quantum Error Correction for Nuclear Spin Qubits in Silicon with Electron ShuttlingNuclear spin qubits in silicon are well-isolated from their environment. Consequently, they have very long lifetimes and low sensitivity to noise, but this also suggests that control and measurement…Wayne M. Witzel, Matthew D. Grace, Dwight R. Luhman·Jul 29, 2026SaveLearn
Floquet Abelian Multicycle CodesAbelian multicycle (AMC) codes are compact quantum low-density parity-check codes whose multiblock chain-complex structure provides redundant low-weight stabilizers and supports single-shot error…Alexey A. Kovalev·Jul 29, 2026SaveLearn
Quantum Interference as a Proposal Mechanism for Combinatorial OptimizationQuantum Interference Proposal Search (QIPS) uses seed-conditioned quantum circuits to generate localized interference patterns as finite-shot proposal distributions for QUBO/Ising optimization.…Donald J. Jacobs·Jul 29, 2026SaveLearn
Closed Timelike Curve Decoding on Quantum HardwareDeutsch closed timelike curves (D-CTCs) are described by a fixed-point condition for a chronology-violating register. We study a finite-dimensional circuit model that places a…Sai Nandan Morapakula, Kazuki Ikeda·Jul 29, 2026SaveLearn
Coherent excitation of a two-state system by a Lorentzian fieldWe study the coherent excitation of a two-state quantum system by a field with a Lorentzian temporal envelope and constant carrier frequency. The associated differential equation admits an exact…Aida Shiroyan, Genko S. Vasilev, Nikolay V. Vitanov·Jul 29, 2026SaveLearn
Bosonic quantum communication beyond the thermal thresholdThe quantum capacity of the bosonic thermal attenuator, which is given by the regularization of its coherent information, is unknown. The seminal work of Holevo and Werner established in 1999 the…Francesco Anna Mele, Giuseppe Catalano, Marco Fanizza et al.·Jul 29, 2026SaveLearn
Area-Information Trade-Offs in Acceleration Radiation from Atoms Falling into Black HolesWe develop a geometric theory of information processing in the Horizon-brightened acceleration radiation (HBAR) channel, in which the radiative horizon-area change provides an entropy budget for the…Yusef Maleki, Gustavo Valdivia-Mera, Carlos R. Ordonez et al.·Jul 29, 2026SaveLearn
Geometry-Induced Domain-Wall Pinning and Z2 Asymmetry in Nominally One-Dimensional Rydberg ArraysWe perform experiments on QuEra's neutral-Rydberg-atom Aquila quantum computer, using quasi-adiabatic evolution on 1-dimensional models. We use hardware fine-tuning to balance the measurement…Elijah Pelofske, Frank Barrows, Cristiano Nisoli·Jul 29, 2026SaveLearn
Restrictions on non-Clifford fault tolerance and ruling out beyond-SQL quantum metrologyQuantum metrology promises a quadratic speedup over the standard quantum limit (SQL), but signal-aligned noise is expected to preclude this advantage in realistic settings. A potential route around…Constantin Cedillo Vayson de Pradenne, Ishaan Kannan, Harald Putterman et al.·Jul 29, 2026SaveLearn
Quantum vs Classical Erasure: Equal Bounds but Unequal CostsIrreversibility has a fundamental thermodynamic cost, erasing information inevitably generates heat. This connection is quantified by the Landauer bound, which gives the minimum dissipation needed to…Jan Neuser, Jake Xuereb, Pharnam Bakhshinezhad et al.·Jul 29, 2026SaveLearn
Quantum State Discrimination With Stabilizer CircuitsThe task of quantum state discrimination provides an operational characterization of distinguishability and plays a central role in quantum information science. Since the achievable success…Benjamin Stratton, Santiago Zamora, Rafael Chaves·Jul 29, 2026SaveLearn
LLM-Guided Initialization for Accelerated Hybrid Quantum-Classical Medical Image ClassificationVariational quantum algorithms often encounter barren plateaus, where cost gradients decay rapidly with increasing circuit depth, undermining the trainability of parameterized quantum circuits. This…Riza Alaudin Syah, Irwan Alnarus Kautsar, Haza Nuzly Bin Abdull Hamed·Jul 29, 2026SaveLearn
Practical Quantum Topological Data Analysis with Applications to High-Dimensional Feature Extraction and Time Series AnalysisTopological data analysis (TDA) provides a powerful framework for extracting information about the shape of complex, unstructured data, but the classical cost of computing high dimensional…Jason Iaconis, Sayonee Ray, Samwel Sekwao et al.·Jul 29, 2026SaveLearn
Fault-Tolerant Logical Operations and Efficient State Preparation in Modular Quantum Architectures with Noisy InterfacesModular quantum computing is a leading paradigm for scaling quantum computation beyond the resource limitations of monolithic devices. In this architecture, multiple quantum processing units (QPUs),…Siddardha Chelluri, Riccardo Mengoni, Tom Darras et al.·Jul 29, 2026SaveLearn
Very Strong Irreversibility of Quantum EntanglementThe manipulation of quantum entanglement is fundamentally irreversible: some mixed entangled states require pure entanglement for their preparation, although no pure entanglement can be recovered…Tulja Varun Kondra, Raphael Brinster, Hermann Kampermann et al.·Jul 29, 2026SaveLearn
Sharp Bounds on Ground State Energy of the SYK ModelWe study the Sachdev-Ye-Kitaev (SYK) Hamiltonian HSYK on n Majorana modes with k-body interactions, and prove that $E\|HSYK\|op =…Arpon Basu, Pravesh K. Kothari, Siddhant Midha·Jul 29, 2026SaveLearn
Robust quantum state certification and uncertainty principles for total influenceWe show that nonadaptive single-qubit Pauli measurements suffice to test whether an unknown n-qubit state ρ is -close to or O()-far from an ideal target state…Andrea Coladangelo, Jerry Li, Joseph Slote·Jul 29, 2026SaveLearn
Reconfigurable Optical Platform for One-way Quantum Communication ComplexityDemonstrating a practical quantum advantage remains a central goal in quantum information science. While quantum computational supremacy is still technologically demanding, communication complexity…Francesco Mazzoncini, Hugo Defienne, Romain Alléaume et al.·Jul 29, 2026SaveLearn