Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Reliable Optimization Under Noise in Quantum Variational Algorithms
Vojtěch Novák, Silvie Illésová, Tomáš Bezděk +2 more·Nov 11, 2025
The optimization of Variational Quantum Eigensolver is severely challenged by finite-shot sampling noise, which distorts the cost landscape, creates false variational minima, and induces statistical bias called winner's curse. We investigate this phe...
Nonexistence of maximally entangled mixed states for a fixed spectrum
Gonzalo Camacho, Julio I. de Vicente·Nov 11, 2025
The existence of a maximally entangled pure state is a cornerstone result of entanglement theory that has paramount consequences in quantum information theory. A natural generalization of this property is to consider whether a notion of maximal entan...
Exact-factorization framework for electron-nuclear dynamics in electromagnetic fields
Vladimir U. Nazarov, E. K. U. Gross·Nov 11, 2025
The Exact Factorization (EF) theory aims at the separation of the nuclear and electronic degrees of freedom in the many-body (MB) quantum mechanical problem. Being formally equivalent to the solution of the MB Schrödinger equation, EF sets up a strat...
Enhancing Circuit Fidelity in Transmon Qubit Rings via Operation Duration Tuning under Strong Connectivity Noise
Quan Fu, Xin Wang, Rui Xiong·Nov 11, 2025
Superconducting transmon qubits are a promising platform for quantum computation, yet they face significant fidelity degradation due to connectivity noise, particularly in the intermediate coupling regime where noise levels are substantial. While pri...
From Classical to Hybrid: A Practical Framework for Quantum-Enhanced Learning
Silvie Illésová, Tomáš Bezděk, Vojtěch Novák +3 more·Nov 11, 2025
This work addresses the challenge of enabling practitioners without quantum expertise to transition from classical to hybrid quantum-classical machine learning workflows. We propose a three-stage framework: starting with a classical self-training mod...
Quantum Markov Chains: Hub-Pruned Estimation for Fashion Recommenders
Or Peretz, Tai Dinh, Michal Koren·Nov 11, 2025
We investigate whether shallow quantum circuits can accurately reproduce the short-horizon dynamics of discrete-time Markov chains derived from fashion electronic-commerce recommendation links. Transition operators are compiled into block-encoded cir...
A Compact Dual-Beam Zeeman Slower for High-Flux Cold Atoms
Chen Chen, Kejun Liu, Dezhou Deng +6 more·Nov 11, 2025
We present a compact design of dual-beam Zeeman slower optimized for efficient production of cold atom applications. Traditional single-beam configurations face challenges from substantial residual atomic flux impacting downstream optical windows, re...
Enhanced quantum correlations from joint pump and photon pair scattering
Mamoon Safadi, Nir Kuchuk, Ohad Lib +2 more·Nov 11, 2025
Scattering of non-classical light is enabling new ways to study and control photon transport. However, advances in this field often rely on simplifying assumptions regarding the quantum light's generation and its source. In this work, we relax some o...
Gate Sequence Optimization for Parameterized Quantum Circuits using Reinforcement Learning
Tom R. Rieckmann, Stefan Scheel, A. Douglas K. Plato·Nov 11, 2025
Current experimental quantum computing devices are limited by noise, mainly originating from entangling gates. If an efficient gate sequence for an operation is unknown, one often employs layered parameterized quantum circuits, especially hardware-ef...
Mixed-state phase structure of gauge-Higgs subsystem codes under logical-preserving decoherence
Yoshihito Kuno, Ikuo Ichinose·Nov 11, 2025
Some of lattice-gauge-theory models, in particular gauge-Higgs model (GHM), can be regarded and work as a subsystem code. This work studies the effect of local-gauge-symmetric decoherence on the GHM from the perspective of the subsystem code. We clar...
Repulsive Inverse-Distance Interatomic Interaction from Many-Body Quantum Electrodynamics
Loris Di Cairano, Matteo Gori, Reza Karimpour +1 more·Nov 11, 2025
Interactions between objects can be classified as fundamental or emergent. Fundamental interactions are either extremely short-range or decay inversely with the separation distance, such as the Coulomb potential between charges or the gravitational a...
Coherence in the Leak and Storage Kurtosis control Ergotropy in Quantum Batteries
Bitap Raj Thakuria, Trishna Kalita, Manash Jyoti Sarmah +1 more·Nov 11, 2025
We introduce a cavity-coupled finite quantum system which can act as a quantum battery by harnessing noise induced coherences. We apply the methodology of full counting statistics to capture higher-order fluctuations of quanta exchange in the storage...
Realization of an all-optical effective negative-mass oscillator for coherent quantum noise cancellation
Nived Johny, Jonas Junker, Bernd Schulte +3 more·Nov 11, 2025
We report the realization of an all-optical, tabletop effective-negative-mass oscillator (ENMO) scheme capable of canceling quantum noise when cascaded with an opto-mechanical sensor susceptible to (quantum) radiation pressure noise. Our coherent qua...
Mutual Mana: Converting Local Magic into Correlations via Discrete Beamsplitters
Linshuai Zhang, Huihui Li·Nov 11, 2025
Magic (non-stabilizerness) is a key resource for achieving universal fault-tolerant quantum computation beyond classical computation. While previous studies have primarily focused on magic in single systems, its interactions and distribution in multi...
Stabilization of Time-Varying Perturbed Quantum Systems via Reduced Filters
Weichao Liang, Daoyi Dong·Nov 11, 2025
In practical applications, quantum systems are inevitably subject to significant uncertainties, including unknown initial states, imprecise physical parameters, and unmodeled environmental noise, all of which pose major challenges to robust quantum f...
Collective Vibronic Cascade in Cavity-Coupled Jahn-Teller Active Molecules
Suraj Kumar Pandit, Abhinay Pandey, Athreya Shankar +1 more·Nov 11, 2025
We study the polaritonic states and dynamics of multiple Jahn-Teller (JT) active molecules coupled to the modes of a Fabry-Perot cavity. We find that collective effects dramatically alter the interplay of electronic, vibrational and cavity angular mo...
Enhancing Remote Magnon-Magnon Entanglement with Quantum Interference
Yuan Gong, Yan-Xue Cheng, Wei Xiong +1 more·Nov 11, 2025
Cavity magnonics, owing to its strong magnon-photon coupling and excellent tunability, has attracted significant interest in quantum information science. However, achieving strong and robust macroscopic entanglement remains a long-standing challenge ...
Sufficient conditions for hardness of lossy Gaussian boson sampling
Byeongseon Go, Changhun Oh, Hyunseok Jeong·Nov 11, 2025
Gaussian boson sampling (GBS) is a prominent candidate for the experimental demonstration of quantum advantage. However, while the current implementations of GBS are unavoidably subject to noise, the robustness of the classical intractability of GBS ...
Secure and Efficient n-Qubit Entangled State Teleportation Using Partially Entangled GHZ Channels and Optimal POVM
Animesh Banik, Md. Shihab Khan, Rafid Masrur Khan +2 more·Nov 11, 2025
We introduce an efficient and versatile quantum teleportation protocol for specific types of n-qubit entangled states. By employing a partially entangled Greenberger-Horne-Zeilinger (GHZ) state as the quantum channel and an optimal Positive Operator-...
Emergent Decoherence Dynamics in Doubly Disordered Spin Networks
Cooper M. Selco, Christian Bengs, Chaitali Shah +2 more·Nov 11, 2025
Elucidating the emergence of irreversible macroscopic laws from reversible quantum many-body dynamics is a question of broad importance across all quantum science. Many-body decoherence plays a key role in this transition, yet connecting microscopic ...