Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Sympathetic Cooling of Levitated Optomechanics through Nonreciprocal Coupling
Jialin Li, Guangyu Zhang, Zhang-qi Yin·Dec 3, 2025
Optomechanical cooling of levitated nanoparticles has become an essential topic in modern quantum physics, providing a platform for exploring macroscopic quantum phenomena and high-precision sensing. However, conventional cavity-assisted cooling is f...
More is uncorrelated: Tuning the local correlations of SU($N$) Fermi-Hubbard systems via controlled symmetry breaking
Edoardo Zavatti, Gabriele Bellomia, Matteo Ferraretto +2 more·Dec 3, 2025
Cold-atom experiments based on alkali-like atoms provide us with a tool to experimentally realize Hubbard models with a large number $N$ of components. The value of $N$ can be seen as a new handle to tune the properties of the system, leading to new ...
Distributed Quantum Computing with Fan-Out Operations and Qudits: the Case of Distributed Global Gates
Seng W. Loke·Dec 3, 2025
Much recent work on distributed quantum computing have focused on the use of entangled pairs and distributed two qubit gates. But there has also been work on efficient schemes for achieving multipartite entanglement between nodes in a single shot, re...
Direct Equivalence between Dynamics of Quantum Walks and Coupled Classical Oscillators
Lilith Zschetzsche, Refik Mansuroglu, András Molnár +1 more·Dec 3, 2025
Continuous time quantum walks on exponentially large, sparse graphs form a powerful paradigm for quantum computing: On the one hand, they can be efficiently simulated on a quantum computer. On the other hand, they are themselves BQP-complete, providi...
Experimental quantum voting using photonic GHZ states
Francis Marcellino, Mingsong Wu, Rob Thew·Dec 3, 2025
Quantum communication protocols seek to leverage the unique properties of quantum systems for coordination or communication tasks, usually with guarantees of security or anonymity that exceed what is possible classically. One promising domain of appl...
Optimizing two-qubit gates for ultracold fermions in optical lattices
Jan A. P. Reuter, Juhi Singh, Tommaso Calarco +2 more·Dec 3, 2025
Ultracold neutral atoms in optical lattices are a promising platform for simulating the behavior of complex materials and implementing quantum gates. We optimize collision gates for fermionic Lithium atoms confined in a double-well potential, control...
Numerical simulation of coherent spin-shuttling in a QuBus with charged defects
Nils Ciroth, Arnau Sala, Ran Xue +4 more·Dec 3, 2025
Recent advances in coherent conveyor-mode spin qubit shuttling are paving the way for large-scale quantum computing platforms with qubit connectivity achieved by spin qubit shuttles. We developed a simulation tool to investigate numerically the impac...
Energy-Scaled Zero-Noise Extrapolation for Gottesman-Kitaev-Preskill Code
Gui-Zhong Luo, Matthew Otten·Dec 3, 2025
The performance of Gottesman-Kitaev-Preskill (GKP) codes, an approach to hardware-efficient quantum error correction, is limited by the finite squeezing capabilities of current experimental platforms. To circumvent this hardware demand, we introduce ...
Quantum Hash Function Based on Spectral Properties of Graphs and Discrete Walker Dynamics
Mohana Priya Thinesh Kumar, Pranavishvar Hariprakash·Dec 3, 2025
We present Quantum Graph Hash (QGH-256), a novel quantum spectral hashing algorithm that generates high-entropy fingerprints from message-induced graphs. Each input message is mapped to a weighted graph via a discrete random walk on an n X n toroidal...
Quantum machine learning -- lecture notes
Bojan Žunkovič·Dec 3, 2025
Lecture notes on quantum machine learning for computer scientists.
Edge bits in average symmetry protected topological mixed state
Yoshihito Kuno·Dec 3, 2025
Edge bit in an average symmetry protected topological (ASPT) mixed state is studied. The state is protected by one strong $Z_2$ and one weak (average) $Z_2$ symmetries. As analogous objects of pure symmetry protected topological (SPT) states, the ASP...
Stretched Exponential Scaling of Parity-Restricted Energy Gaps in a Random Transverse-Field Ising Model
G. -X. Tang, J. -Z. Zhuang, L. -M. Duan +1 more·Dec 3, 2025
The success of a quantum annealing algorithm requires a polynomial scaling of the energy gap. Recently it was shown that a two-dimensional transverse-field Ising model on a square lattice with nearest-neighbor $\pm J$ random coupling has a polynomial...
Complex Wigner entropy and Fisher control of negativity in an oval quantum billiard
Kyu-Won Park, Jongin Jeong·Dec 3, 2025
We develop a complex-entropy framework for Wigner negativity and apply it to avoided crossings in an oval quantum billiard. For a real Wigner function the Gibbs--Shannon functional becomes complex; its imaginary part, proportional to the Wigner-negat...
Beyond Lindblad Dynamics: Rigorous Guarantees for Thermal and Ground State Preservation under System Bath Interactions
Ke Wang, Zhiyan Ding·Dec 3, 2025
We establish new theoretical results demonstrating the efficiency and robustness of system bath interaction models for quantum thermal and ground state preparation. Unlike prior analyses, which typically relies on the Lindblad limit and require vanis...
Quantum Encrypted Control of Networked Systems
Zihao Ren, Daniel Quevedo, Salah Sukkarieh +1 more·Dec 3, 2025
Encrypted control has been extensively studied to ensure the confidentiality of system states and control inputs for networked control systems. This paper presents a computationally efficient encrypted control framework for networked systems enabled ...
Engineering photonic dispersion relation and atomic dynamics in waveguide QED setup via long-range hoppings
Weijun Cheng, Da-Wei Wang, Yang Xue +2 more·Dec 3, 2025
Non-trivial dispersion relations engineered in photonic waveguide for the precise control of atomic dynamics has recently attracted considerable attention. Here, we study a system in which atoms are coupled to one-dimensional coupled-resonator wavegu...
Semantic Temporal Single-photon LiDAR
Fang Li, Tonglin Mu, Shuling Li +11 more·Dec 3, 2025
Temporal single-photon (TSP-) LiDAR presents a promising solution for imaging-free target recognition over long distances with reduced size, cost, and power consumption. However, existing TSP-LiDAR approaches are ineffective in handling open-set scen...
Short-Range Modulated Electron Lattice and d-Wave Superconductivity in Cuprates: A Phenomenological Ginzburg-Landau Framework
Jaehwahn Kim, Davis A. Rens, Waqas Khalid +1 more·Dec 3, 2025
We develop a phenomenological Ginzburg-Landau (GL) framework for high-$T_c$ cuprates in which a short-range modulation of the electronic charge density couples to a $d$-wave superconducting condensate. The resulting modulated electron lattice (MEL) s...
Adaptive Aggregation with Two Gains in QFL
S Nanayakkara·Dec 3, 2025
Federated learning (FL) deployed over quantum enabled and heterogeneous classical networks faces significant performance degradation due to uneven client quality, stochastic teleportation fidelity, device instability, and geometric mismatch between l...
Hybridized-Mode Parametric Amplifier in Kinetic-Inductance Circuits
Danial Davoudi, Abdul Mohamed, Shabir Barzanjeh·Dec 3, 2025
Parametric amplification is essential for quantum measurement, enabling the amplification of weak microwave signals with minimal added noise. While Josephson-junction-based amplifiers have become standard in superconducting quantum circuits, their ma...