Papers
Live trends in quantum computing research, updated daily from arXiv.
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Hardware platform mentions in abstracts — Photonic leads
Effects of Donor-Acceptor Quantum Coherence and Non-Markovian Bath on the Distance Dependence of Resonance Energy Transfer
Seogjoo J. Jang·Jan 2, 2026
Accurate information on the distance dependence of resonance energy transfer (RET) is crucial for its utilization as a spectroscopic ruler \re{of} nanometer scale distances. In this regard, understanding the effects of donor-acceptor quantum coherenc...
A Geometrical Design Tool for Building Cost-Effective Layout-Aware n-Bit Quantum Gates Using the Bloch Sphere Approach
Ali Al-Bayaty, Marek Perkowski·Jan 1, 2026
The conventional design technique of any n-bit quantum gate is mainly achieved using unitary matrices multiplication, where n >= 2 and 1 <= m <= n-1 for m target qubits and n-m control qubits. These matrices represent quantum rotations by an n-bit qu...
Mathieu Control of the Effective Coupling in Superconducting Qubits
Yi-Han Yu, Xin-Yi Li, Kai Xu +1 more·Dec 31, 2025
A common challenge in superconducting quantum circuits is the trade-off between strong coupling and computational subspace integrity. We present Mathieu control, which uses a non-resonant two-photon drive to create a selective nonlinear frequency shi...
Any Clifford+T circuit can be controlled with constant T-depth overhead
Isaac H. Kim, Tuomas Laakkonen·Dec 31, 2025
Since an n-qubit circuit consisting of CNOT gates can have up to $Ω(n^2/\log{n})$ CNOT gates, it is natural to expect that $Ω(n^2/\log{n})$ Toffoli gates are needed to apply a controlled version of such a circuit. We show that the Toffoli count can b...
Adaptive Resource Orchestration for Distributed Quantum Computing Systems
Kuan-Cheng Chen, Felix Burt, Nitish K. Panigrahy +1 more·Dec 31, 2025
Scaling quantum computing beyond a single device requires networking many quantum processing units (QPUs) into a coherent quantum-HPC system. We propose the Modular Entanglement Hub (ModEn-Hub) architecture: a hub-and-spoke photonic interconnect pair...
Non-Abelian Geometric Phases in Triangular Structures And Universal SU(2) Control in Shape Space
J. Dai, A. Molochkov, A. J. Niemi +1 more·Dec 31, 2025
We construct holonomic quantum gates for qubits that are encoded in the near-degenerate vibrational $E$-doublet of a deformable three-body system. Using Kendall's shape theory, we derive the Wilczek--Zee connection governing adiabatic transport withi...
Easier randomizing gates provide more accurate fidelity estimation
Debankan Sannamoth, Kristine Boone, Arnaud Carignan-Dugas +4 more·Dec 31, 2025
Accurate benchmarking of quantum gates is crucial for understanding and enhancing the performance of quantum hardware. A standard method for this is interleaved benchmarking, a technique which estimates the error on an interleaved target gate by comp...
Entanglement dynamics of multi-fluxonium-qubits under Non-Markovian TLS noise
Chenghong Ji, Chaoying Zhao·Dec 31, 2025
The research on open quantum systems is important for both quantum computing and quantum sensing. So far, we can only use the main equation to make an approximate description. The dynamics of a single Fluxonium qubit under Markovian environment satis...
Dynamic Phase Transitions in Periodically Driving 1D Ising Model
Yuanyuan Cheng, Yuxia Zhang, Tianhui Qiu +2 more·Dec 31, 2025
This work investigates dynamical quantum phase transitions (DQPTs) in a one-dimensional Ising model subjected to a periodically modulated transverse field. In contrast to sudden quenches, we demonstrate that DQPTs can be induced in two distinct ways....
One-Shot Structured Pruning of Quantum Neural Networks via $q$-Group Engineering and Quantum Geometric Metrics
Haijian Shao, Wei Liu, Xing Deng +1 more·Dec 30, 2025
Quantum neural networks (QNNs) suffer from severe gate-level redundancy, which hinders their deployment on noisy intermediate-scale quantum (NISQ) devices. In this work, we propose q-iPrune, a one-shot structured pruning framework grounded in the alg...
Exploring Spectral Singularities and Topological Lasers in PT-Symmetric Weyl Semimetals
Arda Sevinc, Rama Alassadi, Mustafa Sarisaman·Dec 30, 2025
This paper investigates the unique properties of PT-symmetric Topological Weyl Semimetals (TWS) within the framework of non-Hermitian physics, focusing on their potential for generating topological lasers. By exploring the role of spectral singularit...
Efficient simulation of logical magic state preparation protocols
Samyak Surti, Lucas Daguerre, Isaac H. Kim·Dec 29, 2025
Developing space- and time-efficient logical magic state preparation protocols will likely be an essential step towards building a large-scale fault-tolerant quantum computer. Motivated by this need, we introduce a scalable method for simulating logi...
SOFT: a high-performance simulator for universal fault-tolerant quantum circuits
Riling Li, Keli Zheng, Yiming Zhang +4 more·Dec 28, 2025
Circuit simulation tools are critical for developing and assessing quantum-error-correcting and fault-tolerant strategies. In this work, we present SOFT, a high-performance SimulatOr for universal Fault-Tolerant quantum circuits. Integrating the gene...
Applying Grover-mixer Quantum Alternating Operator Ansatz Algorithm to High-order Unconstrained Binary Optimization Problems
Evgeniy O. Kiktenko, Elizaveta V. Krendeleva, Aleksey K. Fedorov·Dec 28, 2025
The Quantum Approximate Optimization Algorithm (QAOA) is among leading candidates for achieving quantum advantage on near-term processors. While typically implemented with a transverse-field mixer (XM-QAOA), the Grover-mixer variant (GM-QAOA) offers ...
Energy transport in the Schrödinger plate
Serge N. Gavrilov, Anton M. Krivtsov, Ekaterina V. Shishkina·Dec 28, 2025
In this paper, we introduce "the Schrödinger plate." This is an infinite two-dimensional linear micro-polar elastic medium, with out-of-plane degrees of freedom, lying on a linear elastic foundation of a special kind. Any free motion of the plate can...
An asymmetric and fast Rydberg gate protocol for long range entanglement
Daniel C. Cole, Vikas Buchemmavari, Mark Saffman·Dec 28, 2025
We analyze a new Rydberg gate design based on the original $π-2π-π$ protocol [Jaksch, et. al. Phys. Rev. Lett. {\bf 85}, 2208 (2000)] that is modified to enable high fidelity operation without requiring a strong Rydberg interaction. The gate retains ...
Fast collisional $\sqrt{\mathrm{SWAP}}$ gate for fermionic atoms in an optical superlattice
Rafi Weill, Jonathan Nemirovsky, Yoav Sagi·Dec 27, 2025
Collisional gates in optical superlattices have recently achieved record fidelities, but their operation times are typically limited by tunneling. Here we propose and analyze an alternative route to a fast $\sqrt{\mathrm{SWAP}}$ gate for two fermioni...
Spacetime Spins: Statistical mechanics for error correction with stabilizer circuits
Cory T. Aitchison, Benjamin Béri·Dec 26, 2025
A powerful method for analyzing quantum error-correcting codes is to map them onto classical statistical mechanics models. Such mappings have thus far mostly focused on static codes, possibly subject to repeated syndrome measurements. Recent progress...
Poincaré Duality and Multiplicative Structures on Quantum Codes
Yiming Li, Zimu Li, Zi-Wen Liu +1 more·Dec 26, 2025
Quantum LDPC codes have attracted intense interest due to their advantageous properties for realizing efficient fault-tolerant quantum computing. In particular, sheaf codes represent a novel framework that encompasses all well-known good qLDPC codes ...
Magic State Distillation using Asymptotically Good Codes on Qudits
Michael J. Cervia, Henry Lamm, Diyi Liu +2 more·Dec 26, 2025
Qudits offer the potential for low-overhead magic state distillation, although previous results for asymptotically good codes have required qudit dimension $q\gg 100$ or code length $\mathcal{N}\gg 100$. These parameters far exceed experimental demon...