Optimal Fusion Strategies for Quantum ComputationLogical fusions are important for a number of tasks in quantum information, such as quantum error correction and quantum repeaters. In the photonic setting one must contend with the fact that…Kenneth Goodenough, Andrew Landahl, Joon Lee et al.·Sep 2, 2026SaveLearn
Experimental Evaluation of Passive Polarization Compensation Techniques for Fiber-Distributed Polarization-Entangled PhotonsEntanglement distribution through optical fibers is essential for quantum communication networks; however, fiber transmission can alter photon polarization and modify the observed correlations of…Gayatri Thik, Amit Loyal, Srinivasan K et al.·Sep 2, 2026SaveLearn
Efficient Simulation of Nonreciprocal Many-body Physics via Quantum FeedbackWe present a scheme to efficiently simulate nonreciprocal many-body spin models using a non-Markovian open system. Our scheme utilizes a single quantum emitter coupled to a waveguide mode that is fed…Kseniia Vodenkova, Andrew Pocklington, Fan Yang et al.·Sep 2, 2026SaveLearn
Single-Shot Fidelity Reveals Hard and Soft Limits: A Universal Yardstick for Photon-Number-Resolving DetectorsPhoton-number-resolving (PNR) detectors are essential for photonic quantum computing, where a single measurement outcome must reliably herald a specific quantum state. However, detector fidelity is…Tetsuya Tsuruta, Akio Yoshizawa, Daiji Fukuda·Sep 2, 2026SaveLearn
Engineering of Non-Hermitian Trajectories and Phase Structure in an Open Bose-Hubbard Model via Rate Operator TransformationsNon-Hermitian evolution can be realized through post-selection on stochastic pure-state trajectories arising in continuously monitored open quantum systems. The rate operator formalism provides a…Jaakko Luomala, Kimmo Luoma, Iiro Vilja et al.·Sep 2, 2026SaveLearn
Accurate theoretical methods for photoionization of H2 moleculesSingle-photon ionization cross sections of molecular hydrogen in the electric dipole limit are numerically computed by employing three independent methods. Both time-dependent and -independent…Hakon Volkmann, Jannis Schürmann, Alejandro Saenz·Sep 2, 2026SaveLearn
Circuit-Level Loss Performance of FFCC and RHG Codes in a Compound Photon-Atom Quantum ArchitectureWe compare the Raussendorf-Harrington-Goyal (RHG) code, the Foliated Floquet Color Code (FFCC), and the reduced FFCC in a compound photon-atom architecture that directly generates measurement-based…Dana Ben Porath, Juval Bechar, Daniel Azses et al.·Sep 2, 2026SaveLearn
Programming anharmonic potentials in a superconducting harmonic oscillatorContinuous-variable quantum systems offer a resource-efficient route to universal quantum information processing and analogue quantum simulation of real-world processes, such as molecular physics and…Clara Yun Fontaine, Mansi Somani, Kehui Yu et al.·Sep 2, 2026SaveLearn
A Recursive Module-Coupling Algorithm for Computing Low-Energy EigenstatesFinding the eigenstates of a many-body Hamiltonian is a fundamental challenge in physics and computational science. Since the search space grows exponentially with system size, numerous classical and…Dihang Sun, Nannan Ma, Ching Hua Lee et al.·Sep 2, 2026SaveLearn
Implementation of quantum gates by Floquet analysis of kicked quantum systemPrecise control of multi-qubit architectures remains a critical bottleneck in superconducting quantum processors. In this work, we investigate the synthesis of high-fidelity quantum operations and…Andrea De Luca, Carola Ciaramelletti, Simone Paganelli·Sep 2, 2026SaveLearn
DMRG using Belief PropagationTensor networks have attracted much attention as a powerful tool for modeling quantum many-body systems. Their contraction is a significant challenge, however, especially in highly connected…Hendrik Kühne, Christian B. Mendl·Sep 2, 2026SaveLearn
A proposal for a hybrid free-space optical quantum communication network with hexagonal boron nitride-based single photon sourcesHexagonal boron nitride (hBN) is known as a promising solid-state platform to host room temperature quantum emitters that produce high purity single photons. The bright and spectrally adaptable hBN…Julien Chénedé, Mostafa Abasifard, Tjorben Matthes et al.·Sep 2, 2026SaveLearn
Coherent microwave-to-optical transduction with Yb:YSO spins strongly coupled to a 3D resonatorMicrowave-to-optical quantum transducers are essential for entangling remote superconducting qubits. Among the available transduction platforms, ensembles of Er3+ and Yb3+ ions doped into…Ujjwal Gautam, Nasser Gohari Kamel, Sourabh Kumar et al.·Sep 2, 2026SaveLearn
Observation of Hong-Ou-Mandel interference between photon and polaritonLight-matter interactions underlie many quantum technologies, yet whether quasiparticles formed from such interactions preserve the full quantum state of light remains unresolved. Surface plasmon…Yun-Ru Fan, Ying-Ao Su, Kai Guo et al.·Sep 2, 2026SaveLearn
Quantum MeanFlow: single-shot generative sampling on NISQ hardwareQuantum generative models offer a promising framework for exploring whether quantum computation can enhance generative machine learning. Flow matching is a generative method in which samples are…Ashish Joshi, Eshaan Mistry, Takahiko Koyama·Sep 2, 2026SaveLearn
Renormalization group and long-range conditional mutual information in hierarchical modelsA departure of a mixed quantum state from a local Gibbs description is generally invisible to local observables but can be detected by the conditional mutual information (CMI). Here we study the…Yu-Hsueh Chen·Sep 2, 2026SaveLearn
A variational quantum eigensolver-based cutting plane framework for semidefinite programming problemsSemidefinite programming plays a key role in optimization, with broad impact across control theory, machine learning, and combinatorial optimization. Although semidefinite programs are polynomially…Gizem Ozbaygin, Burak Kocuk, Diego A. Moran R·Sep 2, 2026SaveLearn
Logarithmic-scale variational quantum eigensolver for off-lattice protein structure prediction in continuous torsional angle spaceClassical and current quantum approaches to protein structure prediction (QPSP) face limitations, notably massive qubit requirements restricting near-term models to simplistic on-lattice simulations.…Fabio Cumbo, Bryan Raubenolt, Varun Puram et al.·Sep 2, 2026SaveLearn
An Entanglement-Assisted Stabilizer Framework for Distributed Sensing of Local PhasesDistributed quantum sensing requires spatially separated probes to acquire local parameters while maintaining compatibility with network-level quantum information processing. We develop an…Huidan Zheng, Ilkwon Sohn, Jun Heo·Sep 2, 2026SaveLearn
A Quantum Algorithm for the Radical of a Lie Algebra: Kernel Projection and ConditioningEvery finite-dimensional real or complex Lie algebra has a largest solvable ideal, its radical. In the compact dynamical Lie algebra (DLA) of a closed quantum system, this radical is the center;…Yibin Wang·Sep 2, 2026SaveLearn
Analytic Maximal Violation of Extended MABK Inequalities for Generalized GHZ StatesWe analytically characterize the maximal quantum violation of the extended Mermin-Ardehali-Belinskii-Klyshko (EMABK) family of inequalities by n-qubit generalized Greenberger-Horne-Zeilinger (GHZ)…Kun-Peng Wu, Hui-Xian Meng, Jie Zhou et al.·Sep 2, 2026SaveLearn
A generalized harmonic oscillator problem for a spin-1/2 fermionThe exact bound-state wavefunctions and the corresponding energy equation are calculated for a new generalized harmonic oscillator problem describing a spin-1/2 fermion in 3+1-dimensions, involving…V. B. Mendrot, A. S. de Castro, P. Alberto·Sep 2, 2026SaveLearn
Entanglement, anti-flatness, and nonlocal nonstabilizerness: a unified perspective from entanglement spectrumEntanglement and nonstabilizerness capture distinct aspects of quantum complexity, yet their relation through the entanglement spectrum remains poorly understood. Here we develop a spectral framework…Lei-Yi-Nan Liu, Jian Cui·Sep 2, 2026SaveLearn
Contrasting Effects of Control on Fidelity and Fidelity Deviation in Controlled TeleportationTeleportation performance is commonly characterized by the average teleportation fidelity, while its variation over input states provides additional information captured by the fidelity deviation. In…Jeonghyeon Shin, Minjin Choi·Sep 2, 2026SaveLearn
Maximal-velocity deficit under a finite-support constraint in a hard-wall half-line continuous-time quantum walkContinuous-time quantum walks on a lattice spread ballistically and converge to a limiting distribution for the rescaled position. On the hard-wall half line the boundary reflects the walker but does…Kangqiao Liu, Deyou Chen·Sep 2, 2026SaveLearn