Solving the MAX-k-CUT problem for hypergraphs with quantum computingWe investigate the MAX-k-CUT problem on hypergraphs by considering their representation as spin systems with Ising interactions. The corresponding cost Hamiltonian for MAX-k-CUT problem on…V. S. Yarmus, Kh. P. Gnatenko·Oct 30, 2026SaveLearn
Simulating two-Dimensional decaying vortex structure with the Carleman-Lattice-Boltzmann methodWe perform a numerical study of the free decay of two-dimensional nonlinear vortex structures using the second-order-truncated Carleman-Lattice Boltzmann method (CLB2). To this purpose, we simulate…Luca Cappelli, Massimo Berneschi, Sauro Succi·Oct 30, 2026SaveLearn
Quantum machine learning geospatial time-series by seasonal encodingQuantum data reuploading models can increase the expressive capacity of variational quantum models, but do not necessarily improve predictive performance. In the present work, we investigate this…Devjyoti Tripathy, Reece Robertson, Josey Stevens et al.·Oct 30, 2026SaveLearn
Windowed Catodyne Measurements: Continuum Approximation versus Exact Discrete Photon-Number TreatmentWe analyze a family of measurements obtained by retaining only a finite window of the photon-sum variable in catodyne detection, where a Schrödinger cat state serves as the local oscillator. In the…Elahe Nahvifard, Mohammad Reza Bazrafkan·Oct 30, 2026SaveLearn
Quantum Bernstein--Kolmogorov--Arnold approximationThis paper addresses the expressivity and representation gap in Quantum Neural Networks by establishing a quantum analogue of the classical Kolmogorov--Arnold representation theorem. We propose a…Sviatoslav V. Dzhenzher·Oct 30, 2026SaveLearn
Symmetries and model reduction in a 2φ transmon qubitEngineered symmetries in superconducting circuits can protect quantum information; much like selection rules in atomic physics, they forbid transitions between the qubit states. Protected circuits,…Erwan Roverc'h, Kyrylo Gerashchenko, Alvise Borgognoni et al.·Oct 30, 2026SaveLearn
FaultScope: A software package for fast error attribution in quantum error correctionWe introduce FaultScope, a classical simulator for quantum error correction circuits, implemented in Rust with a Python interface. FaultScope estimates logical error rates and their derivatives with…Yuguo Shao, Zhenyu Chen, Ningfeng Wang et al.·Oct 30, 2026SaveLearn
High-efficiency photonic GHZ measurements with linear opticsProbabilistic and destructive Bell-measurements, also known as fusions, constitute a fundamental primitive for photonic quantum technologies. These operations rely only on pairwise photonic…Stefan N. van den Hoven, Love A. Pettersson, Anders S. Sørensen et al.·Oct 30, 2026SaveLearn
eCAS: An Orbital Embedding Method for Quantum ComputingFuture fault-tolerant quantum computers will allow us to calculate electronic structures of atomistic systems. However, these systems will be intrinsically limited in size, requiring embedding…Anna Brünisholz, Markus Reiher·Oct 30, 2026SaveLearn
An Unbounded Separation of Almost-Quantum and Commuting-Operator Correlations in Zero-Error CommunicationAlmost-quantum correlations form the 1+AB level of the Navascués--Pironio--Acín hierarchy. They strictly contain the quantum set, are characterized by a single semidefinite program, arise…Rafiuddin Gazi, Biswadeep Chatterjee, Jayashree Karmakar et al.·Oct 30, 2026SaveLearn
Almost-Quantum Correlations Violate Information CausalityInformation causality (IC) posits that communicating m classical bits cannot give the receiver access to more than m bits of information about the sender's independent data. Although IC holds in…Anandamay Das Bhowmik, Manik Banik·Oct 30, 2026SaveLearn
oracq: A Modular Framework for Implementing and Analyzing Quantum Scientific Computing AlgorithmsQuantum algorithms for scientific computing are specified against access models such as block-encodings, sparse oracles, state preparations, and quantum random-access memories. Their concrete…Zhao-Yun Chen, Ming-Yang Tan, Guo-Ping Guo·Oct 30, 2026SaveLearn
Analytic level statistics of the quantum Rabi modelWe derive an analytic expression for the distribution of level spacings in the quantum Rabi model. At high energies, the spectrum in a fixed parity sector takes the asymptotic form of a uniformly…Zi-Min Li, Long-Jie Li, German Sierra et al.·Oct 30, 2026SaveLearn
Real-time BP decoding of a high-rate QEC codeWe present a real-time FPGA decoder for a high-rate [[512,174,8]] 3D product qLDPC code. We construct a circuit-level detector-error model for a compact syndrome-extraction schedule and propose a…Andreas Kell, Daniel Herr, Daniel Bascones García et al.·Oct 30, 2026SaveLearn
Helper-assisted quantum sensing with low dressed-state leakageWe study a two-qubit sensing protocol in which only a helper qubit is read out. Calibrated loading and unloading encode a transverse signal in the helper's phase, keep leakage out of a selected…Shirwan Abdullah·Oct 30, 2026SaveLearn
Distilling Knowledge from Search: Decoder Model Factory for Quantum LDPC CodesWe introduce GraphMP, a learning-based message-passing decoder for quantum low-density parity-check codes that transfers without fine-tuning across code families, code sizes, physical error rates,…Anil Bilgin, Wanda Hou, Pranav Srinivas et al.·Oct 30, 2026SaveLearn
Loss-aware optimization of realistic GKP gid statesRealistic preparation of Gottesman-Kitaev-Preskill (GKP) states, the prime candidates for quantum computation with bosonic systems, is inevitably burdened by photon loss. We show how taking this loss…Michal Matulík, Petr Marek·Oct 30, 2026SaveLearn
Time-Domain Multiplexing for Resource-Efficient Heralded GKP State PreparationGottesman-Kitaev-Preskill (GKP) states are key resources for fault-tolerant photonic quantum computing, but their conditional preparation via Gaussian boson sampling involves a trade-off between…Ke-Ming Hu, Jun-Jie He, Yu-Ze Zhu et al.·Oct 30, 2026SaveLearn
PyQLAS: A Quantum-Classical Hybrid Solver Library for Linear SystemsQuantum algorithms solve a linear system at a cost that grows only polylogarithmically in its dimension, but on present-day hardware that advantage is realised only if the quantum and the classical…Meng-Han Dou, Teng-Yang Ma, Chuang-Chao Ye et al.·Oct 30, 2026SaveLearn
Optimality of the Petz-Fuchs Smoothed StateQuantum state smoothing is an estimation technique that uses past and future measurement information obtained from a continuous-in-time measurement record to reconstruct the state of an open quantum…Kiarn T. Laverick·Oct 30, 2026SaveLearn
Estimation of Quantum Umlaut InformationQuantifying correlations is important for understanding how quantum states and channels support information processing. Quantum umlaut information U connects such correlations to reliability in…Beomjoon Kim, Donghwa Ji, Kabgyun Jeong·Oct 30, 2026SaveLearn
Parametric Enhancement of an Optical Spring in a Dark Signal-Recycling CavityOptical springs tailor the response of precision sensors. Parametric amplification of the signal field stiffens the spring, extending the precision to higher frequencies. A Michelson interferometer…Kaido Suzuki, Ryo Iden, Ken-ichi Harada et al.·Oct 30, 2026SaveLearn
Testing hardware quantum machine learning claims with a null circuit: fill prediction on Binance futures with 129 qubits of an IBM Heron processorQuantum processors are now used as feature generators for classical models on tabular data. A circuit encodes each record, the device returns expectation values, and a classical model learns from…Muhammad Faryad·Oct 30, 2026SaveLearn
Quantum Advantage in Beam-Displacement Estimation for Inter-Satellite Quantum-Secure Time TransferIn this work, we investigate the practical feasibility of achieving a quantum advantage, in the context of inter-satellite quantum communication, of satellite position estimation. The investigation…Ziqing Wang, Robert Malaney·Oct 30, 2026SaveLearn
Biorthogonal universal quantum controlAs a paradigm for describing open-quantum-system dynamics, the non-Hermitian Schrödinger equation generally modifies state norms, complicating coherent control over the system's Hilbert space.…Chen-yi Zhang, Jun Jing·Oct 30, 2026SaveLearn