Papers
Live trends in quantum computing research, updated daily from arXiv.
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12,930 papers in 12 months (-5% vs prior quarter)
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Sample-efficient quantum error mitigation via classical learning surrogates
Wei-You Liao, Ge Yan, Yujin Song +5 more·Nov 10, 2025
The pursuit of practical quantum utility on near-term quantum processors is critically challenged by their inherent noise. Quantum error mitigation (QEM) techniques are leading solutions to improve computation fidelity with relatively low qubit-overh...
Achieving fast and robust perfect entangling gates via reinforcement learning
Leander Grech, Matthias G. Krauss, Mirko Consiglio +4 more·Nov 10, 2025
Noisy intermediate-scale quantum computers hold the promise of tackling complex and otherwise intractable computational challenges through the massive parallelism offered by qubits. Central to realizing the potential of quantum computing are perfect ...
Resource-Efficient Quantum Optimization via Higher-Order Encoding
Frederik Koch, Shahram Panahiyan, Rick Mukherjee +2 more·Nov 10, 2025
Quantum approaches to combinatorial optimization problems (COPs) are often limited by the resource demands of Quadratic Unconstrained Binary Optimization (QUBO) encodings, which enlarge circuits through penalty terms and increase qubit and gate count...
Reconfigurable Quantum Instruction Set Computers for High Performance Attainable on Hardware
Zhaohui Yang, Dawei Ding, Qi Ye +3 more·Nov 10, 2025
The performance of current quantum hardware is severely limited. While expanding the quantum ISA with high-fidelity, expressive basis gates is a key path forward, it imposes significant gate calibration overhead and complicates compiler optimization....
High-Fidelity Controlled-Phase Gate for Binomial Codes via Geometric Phase Engineering
Yifang Xu, Yilong Zhou, Lida Sun +12 more·Nov 9, 2025
High-fidelity two-logical-qubit gates are essential for realizing fault-tolerant quantum computation with bosonic codes, yet experimentally reported fidelities have rarely exceeded 90\%. Here, we propose a geometric phase engineering approach for imp...
Addressable gate-based logical computation with quantum LDPC codes
Laura Pecorari, Francesco Paolo Guerci, Hugo Perrin +1 more·Nov 8, 2025
Quantum computing relies on quantum error correction for high-fidelity logical operations, but scaling to achieve near-term quantum utility is highly resource-intensive. High-rate quantum LDPC codes can reduce error correction overhead, yet realizing...
Helios: A 98-qubit trapped-ion quantum computer
Anthony Ransford, M. S. Allman, Jake Arkinstall +183 more·Nov 7, 2025
We report on Quantinuum Helios, a 98-qubit trapped-ion quantum processor based on the quantum charge-coupled device (QCCD) architecture. Helios features $^{137}$Ba$^{+}$ hyperfine qubits, all-to-all connectivity enabled by a rotatable ion storage rin...
Channel Superposition Mitigates Photon Loss Errors in Quantum Illumination
Fei Li, Xiao-Wei Li, Oscar Dahlsten·Nov 7, 2025
In quantum illumination, the probe photon is entangled with an ancilla photon, and both are jointly measured at the end. The entanglement between the probe and ancilla photons enhances the detection performance per unit average photon number in the p...
Hybrid Action Reinforcement Learning for Quantum Architecture Search
Jiayang Niu, Yan Wang, Jie Li +4 more·Nov 7, 2025
Reinforcement learning-based Quantum Architecture Search (QAS) offers a promising avenue for automating the design of variational quantum circuits, but existing methods typically decouple discrete structure search from continuous parameter optimizati...
Distributed quantum approximate counting algorithm
Huaijing Huang, Daowen Qiu·Nov 7, 2025
In this article, we propose a distributed quantum algorithm for solving counting problem using Grover operator and a classical post-processing procedure. We apply the proposed algorithm to estimate inner products and Hamming distances. Simulations ar...
Programmable Adiabatic Rapid Passage laser pulses for Ultra-fast Gates on trapped ions
En-Teng An, Hao-Qing Zhang, Yun-Feng Huang +2 more·Nov 7, 2025
Scaling of quantum gates remains a central challenge in quantum information science. Ultrafast gates based on spin-dependent kicks provide a promising approach for trapped-ion systems. However, these gates require laser pulses with both high temporal...
Ballistic bosonic noise suppression with hybrid qumode-qubit rotation gates
Saurabh U. Shringarpure, Siheon Park, Sungjoo Cho +4 more·Nov 7, 2025
Noise suppression is of paramount importance for reliable quantum information processing and computation. We show that for any single-mode bosonic code (qumode) corrupted by thermal~noise at rate~$η$ and mean \mbox{excitation}~$\bar{n}$, a hybrid con...
Security Evaluation of Quantum Circuit Split Compilation under an Oracle-Guided Attack
Hongyu Zhang, Yuntao Liu·Nov 6, 2025
Quantum circuits are the fundamental representation of quantum algorithms and constitute valuable intellectual property (IP). Multiple quantum circuit obfuscation (QCO) techniques have been proposed in prior research to protect quantum circuit IP aga...
Automated Discovery of Non-local Photonic Gates
Sören Arlt, Mario Krenn, Xuemei Gu·Nov 6, 2025
Interactions between quantum systems enable quantum gates, the building blocks of quantum information processing. In photonics, direct photon-photon interactions are too weak to be practically useful, so effective interactions are engineered with lin...
Qubit Mapping and Routing tailored to Advanced Quantum ISAs: Not as Costly as You Think
Zhaohui Yang, Kai Zhang, Xinyang Tian +6 more·Nov 6, 2025
Qubit mapping/routing is a critical stage in compilation for both near-term and fault-tolerant quantum computers, yet existing scalable methods typically impose several times the routing overhead in terms of circuit depth or duration. This inefficien...
Automatic tuning of a donor in a silicon quantum device using machine learning
Brandon Severin, Tim Botzem, Federico Fedele +12 more·Nov 6, 2025
Donor spin qubits in silicon offer one- and two-qubit gates with fidelities beyond 99%, coherence times exceeding 30 seconds, and compatibility with industrial manufacturing methods. This motivates the development of large-scale quantum processors us...
Hybrid Single-Ion Atomic-Ensemble Node for High-Rate Remote Entanglement Generation
Benedikt Tissot, Soubhadra Maiti, Emil R. Hellebek +1 more·Nov 6, 2025
Different quantum systems possess different favorable qualities. On the one hand, ensemble-based quantum memories are suited for fast multiplexed long-range entanglement generation. On the other hand, single-atomic systems provide access to gates for...
Neutral-atom quantum computation using multi-qubit geometric gates via adiabatic passage
Sinchan Snigdha Rej, Bimalendu Deb·Nov 6, 2025
Adiabatic geometric phase gates offer enhanced robustness against fluctuations compared to con- ventional Rydberg blockade-based phase gates that rely on dynamical phase accumulation. We theoretically demonstrate two- and multi-qubit phase gates in a...
Cluster States Generation with a Quantum Metasurface
Yehonatan Levin, Uri Israeli, Rivka Bekenstein·Nov 6, 2025
We investigate the implementation of photonic cluster state generation protocols using quantum metasurfaces comprising sub-wavelength atomic arrays which enables quantum-controlled reflectivity. These cluster states are generated using fundamental qu...
Random access Bell game by sequentially measuring the control of the quantum SWITCH
Gaurang Agrawal, Saptarshi Roy·Nov 6, 2025
Preserving quantum correlations such as Bell nonlocality in noisy environments remains a fundamental challenge for quantum technologies. We introduce the Random Access Bell Game (RABG), a task where an entangled particle propagates through a sequence...