Quantum synchronization: A tutorial guideSynchronization is a collective phenomenon in which interacting nonlinear oscillators develop a persistent relation between their phases and frequencies. In quantum systems, its description requires…Sourabh Lahiri, Shamik Gupta·Sep 13, 2026SaveLearn
Engineering non-Markovianity from spectral shaping of bosonic and fermionic bathsNon-Markovianity is the property that a physical system's future state depends on its previous dynamical history, namely the system has memory of its past. It is a key resource for quantum…Si Luo, Cun Long, Daochi Zhang et al.·Sep 13, 2026SaveLearn
EPR-steering boundaries from a universal spectral equationWe determine EPR-steering boundaries from a universal spectral equation for the common hidden-state ensemble underlying remote conditional preparations. In arbitrary finite-dimensional bipartite…Yu-Xuan Zhang, Leong-Chuan Kwek, Jing-Ling Chen·Sep 13, 2026SaveLearn
Efficient expectation value estimation for quantum circuits via extended stabilizer frameworks and adaptive variance estimationClassical simulability of quantum circuits plays a central role in characterizing and quantifying quantum computational advantage. Typically, the presence of non-Clifford gates introduces an…Yunseo Hwang, Giwon Song, Kyoung Keun Park et al.·Sep 13, 2026SaveLearn
An All-van-der-Waals QubitAdvances in solid-state physics, materials science, and device engineering have accelerated the development of superconducting qubits. Among emerging platforms, van der Waals (vdW) materials and…Sein Park, Sameia Zaman, Junghyun Kim et al.·Sep 13, 2026SaveLearn
Trace-Norm Overlaps of Quantum States: Interpolation, Equality, and Data-Processing RigidityLet ρ and σ be density operators on a separable Hilbert space. For 0<α<1, we study the directed trace-norm overlap Φα(ρ,σ)=\|ρασ1-α\|1 and its symmetrized form $…Zahra Maleki Khouzani, Seyed Mahmoud Manjegani·Sep 13, 2026SaveLearn
Fast CZ gate in hybrid fluxonium-transmon systems with tunable couplersHybrid superconducting architectures combining different types of qubits offer a promising platform for exploiting their complementary advantages, yet high-fidelity entangling gates remain…Peng Xu, Yunlong Wang, Yuechen Mu et al.·Sep 13, 2026SaveLearn
Programmable nonlinear function synthesis on a photonic processor with quantum signal processingProgrammable photonic integrated circuits are emerging as increasingly large and versatile interferometric processors operating at room temperature. However, their native operations are linear, while…Elaheh Karooby, Masoud Hakimi Heris, Yuan Liu et al.·Sep 12, 2026SaveLearn
Operator Learning with Variational Quantum CircuitsA new methodology is developed for quantum machine learning which enables variational quantum circuits to learn linear and non-linear solution operators to differential equations. This is devised by…Jorgen Wu, Masoud Barati, Peyman Givi·Sep 12, 2026SaveLearn
Torsion detection in clique complexes is conditionally QMA1-hardQuantum algorithms for topological data analysis compute Betti numbers, the ranks of the homology groups of a simplicial complex, which can be read off from the kernel of a combinatorial Laplacian.…Adam Wesołowski·Sep 12, 2026SaveLearn
Broadband Purcell Filter for Fast Superconducting Qubit Reset and ReadoutRapid reset and readout of qubit states are essential for quantum error correction, yet accelerating these operations through stronger coupling to a dissipative environment inevitably increases qubit…Yu Zhao, Zhixu Chen, Hanxian Liu et al.·Sep 12, 2026SaveLearn
Formulating Multistage Cutting Stock Problems as QUBOCutting stock problems are of large relevance to a variety of industry branches. Here, we present a linear programming formulation for a restricted version of the multistage 2D cutting stock problem…Marcel Seelbach Benkner, Chiara Capecci, Sebastian Nagies et al.·Sep 12, 2026SaveLearn
No cardinality bound for squashed entanglementSquashed entanglement is an additive bipartite entanglement measure. For a state ρAB, it is defined as the infimum of all conditional mutual information I(A:B E) evaluated on extensions…Rabsan Galib Ahmed, Graeme Smith·Sep 12, 2026SaveLearn
Conditional Quantum Flow Matching for Data-Scarce Physiological Signal AugmentationGenerative augmentation is a standard remedy for label scarcity in physiological signal classification, but existing quantum generative models start from uninformative noise, ignoring class structure…Chi-Sheng Chen, Samuel Yen-Chi Chen·Sep 12, 2026SaveLearn
Noise-aware derivative feedback of a harmonic oscillator under quantum-limited position measurementWe study measurement-based feedback control of a damped harmonic oscillator, motivated by optomechanical and interferometric position measurements, in which feedback is synthesized from a…Vedran Vujnović·Sep 12, 2026SaveLearn
SUTURE: Syndrome-Guided Repair for Segmented Feasibility-Preserving VQAs on Noisy HardwareConstrained binary optimization is a representative class of NP-hard problems in scheduling, resource allocation, and finance. Segmented feasibility-preserving variational quantum algorithms (VQAs)…Sokea Sang, Leanghok Hour, Sanghyeon Lee et al.·Sep 12, 2026SaveLearn
Partial Stabilizer Learning under Fixed Commuting Constraints and the Absence of a Copy-Rate DiscountWe consider an unknown pure stabilizer state of \(n\) qudits with a fixed prime local dimension \(p\), together with prescribed commuting Pauli observables. Rather than learning the whole state, the…Masahito Hayashi, Yimin Lu·Sep 12, 2026SaveLearn
Faithful certification of steering- and incompatibility-breaking channelsWe consider a quantum steering scenario where Alice prepares a bipartite state, sends one subsystem to Bob through a quantum channel, and aims to convince him that their shared state is entangled.…Po-Ting Hsu, Shin-Liang Chen·Sep 12, 2026SaveLearn
Hiai--Petz Skew Informations and Sharp Uncertainty Relations for a Single ObservableWe study intrinsic quantum uncertainty associated with a single observable from the viewpoint of skew information. By relaxing ordinary additivity while retaining the other fundamental uncertainty…Gen Kimura·Sep 12, 2026SaveLearn
Open Quantum SystemsOpen quantum systems describe quantum systems that interact unavoidably with their environments. These notes introduce the physical origins of decoherence and dissipation in realistic settings,…Erik Torrontegui, Ricardo Puebla·Sep 12, 2026SaveLearn
What Output-Equivalence Oracles Miss: An Empirical Study of Equivalence-Invisible Bug Fixes in Quantum Transpilers (Qiskit, tket, Cirq)Quantum compilers are judged correct by an output-equivalence oracle: the compiled circuit must compute the same unitary as the original, modulo global phase and a qubit-layout permutation. This…Furqan Nasir, Arif Shah, Iftikhar Alam·Sep 12, 2026SaveLearn
Binary Optimization with Complex Constraints via Quantum Approximate Multi-Objective OptimizationWe show that a class of binary optimization problems with complex non-quadratic objectives or constraints can be reformulated as multi-objective quadratic unconstrained binary optimization problems.…Andres Ruiz, Soumyadip Ghosh, Stefan Woerner·Sep 12, 2026SaveLearn
Time domain non-linear quantum interferometryInterferometry is a powerful method for studying many fundamental phenomena ranging from gravitational waves to anyon excitations. Besides loss of coherence in the interferometer paths, quantum…C. Fruy, A. Théry, B. Hue et al.·Sep 12, 2026SaveLearn
Shot-based variational simulation of the toric code phase transition: Energy, global entanglement, and noise resilienceWe investigate the capability of variational quantum circuits in detecting a topological phase transition within the toric code model subjected to a uniform magnetic field. The detection is carried…Hayede Zarei, Mohammad Hossein Zarei·Sep 12, 2026SaveLearn
Room-Temperature Storage of Entanglement in a Silicon Carbide Quantum NodeRobust entanglement at room temperature is a central challenge for solid-state quantum information processing and quantum-enhanced sensing. Here we demonstrate room-temperature storage of…Shuo Ren, Rui-Jian Liang, Qi-Cheng Hu et al.·Sep 12, 2026SaveLearn