Papers
Live trends in quantum computing research, updated daily from arXiv.
Total Papers
27,228
This Month
780
Today
0
Research Volume
12,700 papers in 12 months (-11% vs prior quarter)
Research Focus Areas
Papers by research theme (12 months). Hover for details.
Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Bidirectional Decoding for Concatenated Quantum Hamming Codes
Chao Zhang, Zipeng Wu, Jiahui Wu +1 more·Jan 14, 2026
High-rate concatenated quantum codes offer a promising pathway toward fault-tolerant quantum computation, yet designing efficient decoders that fully exploit their error-correction capability remains a significant challenge. In this work, we introduc...
Distributed Exact Quantum Amplitude Amplification Algorithm for Arbitrary Quantum States
Xu Zhou, Wenxuan Tao, Keren Li +1 more·Jan 14, 2026
In the noisy intermediate-scale quantum (NISQ) era, distributed quantum computation has garnered considerable interest, as it overcomes the physical limitations of single-device architectures and enables scalable quantum information processing. In th...
Near-optimal discrimination of displaced squeezed binary signals using displacement, inverse-squeezing, and photon-number-resolving detection
Enhao Bai, Jian Peng, Tianyi Wu +6 more·Jan 14, 2026
We propose an inverse-squeezing Kennedy receiver for discriminating binary phase-shift-keyed displaced squeezed vacuum states. The receiver combines a Kennedy-type nulling displacement, an orthogonally oriented inverse-squeezing operation and photon-...
Impact of control signal phase noise on qubit fidelity
Agata Barsotti, Paolo Marconcini, Gregorio Procissi +1 more·Jan 13, 2026
As qubit decoherence times are increased and readout technologies are improved, nonidealities in the drive signals, such as phase noise, are going to represent a crucial limitation to the fidelity achievable at the end of complex control pulse sequen...
Demonstration Of A Quantum Magnetometer Chip Based On Proprietary And Scalable 4H-Silicon Carbide Technology
P. A. Stuermer, D. Wirtitsch, T. Steidl +14 more·Jan 13, 2026
This work presents an industrially scalable, power-efficient and high-performance quantum magnetometer chip based on proprietary 4H-silicon carbide (SiC) technology, leveraging wafer-scale fabrication techniques to optimize V2 silicon vacancy color c...
Enhancing classical simulation with noisy quantum devices
Ruiqi Zhang, Fuchuan Wei, Zhaohui Wei·Jan 13, 2026
As quantum devices continue to improve in scale and precision, a central challenge is how to effectively utilize noisy hardware for meaningful computation. Most existing approaches aim to recover noiseless circuit outputs from noisy ones through erro...
Local Magnetometry from Measurement-Induced Dissipation
Rishith Reddy, Parveen Kumar, Ankur Das·Jan 13, 2026
Magnetic phases are commonly identified through macroscopic magnetization, yet many ordered states, including antiferromagnets and altermagnets, possess a vanishing net moment despite distinct local spin structure. We show that such an order can be a...
Kernel Learning for Regression via Quantum Annealing Based Spectral Sampling
Yasushi Hasegawa, Masayuki Ohzeki·Jan 13, 2026
While quantum annealing (QA) has been developed for combinatorial optimization, practical QA devices operate at finite temperature and under noise, and their outputs can be regarded as stochastic samples close to a Gibbs--Boltzmann distribution. In t...
Fragility of Optimal Measurements due to Noise in Probe States for Quantum Sensing
Andrew Kolmer Forbes, Marco A. Rodríguez-García, Ivan H. Deutsch·Jan 13, 2026
For a given quantum state used in sensing, the quantum Cramér-Rao bound (QCRB) sets a fundamental limit on the precision achievable by an unbiased estimator of an unknown parameter, determined by the inverse of the quantum Fisher information (QFI). T...
Dissipative ground-state preparation of a quantum spin chain on a trapped-ion quantum computer
Kazuhiro Seki, Yuta Kikuchi, Tomoya Hayata +1 more·Jan 13, 2026
We demonstrate a dissipative protocol for ground-state preparation of a quantum spin chain on a trapped-ion quantum computer. As a first step, we derive a Kraus representation of a dissipation channel for the protocol recently proposed by Ding et al....
Multi-level charge fluctuations in a Si/SiGe double quantum dot device
Dylan Albrecht, Feiyang Ye, N. Tobias Jacobson +1 more·Jan 13, 2026
Discrete charge fluctuations, routinely observed in semiconductor quantum dot devices, may contribute significantly to device drift and errors resulting from qubit miscalibration. Understanding the nature and origins of these discrete charge fluctuat...
Quantum Energetic Advantage before Computational Advantage in Boson Sampling
Ariane Soret, Nessim Dridi, Stephen C. Wein +3 more·Jan 12, 2026
Understanding the energetic efficiency of quantum computers is essential for assessing their scalability and for determining whether quantum technologies can outperform classical computation beyond runtime alone. In this work, we analyze the energy r...
Data-driven learning of non-Markovian quantum dynamics
Samuel Goodwin, Brian K. McFarland, Manuel H. Muñoz-Arias +6 more·Jan 12, 2026
Fault-tolerant quantum computing requires extremely precise knowledge and control of qubit dynamics during the application of a gate. We develop a data-driven learning protocol for characterizing quantum gates that builds off previous work on learnin...
TrackHHL: The 1-Bit Quantum Filter for particle trajectory reconstruction
Xenofon Chiotopoulos, Davide Nicotra, George Scriven +5 more·Jan 12, 2026
The transition to the High-Luminosity Large Hadron Collider (HL-LHC) presents a computational challenge where particle reconstruction complexity may outpace classical computing resources. While quantum computing offers potential speedups, standard al...
Bright Source of High-Dimensional Temporal Entanglement
Dorian Schiffer, Robert Kindler, Alexandra Bergmayr-Mann +5 more·Jan 12, 2026
High-dimensional entanglement is considered to hold great potential for quantum key distribution (QKD) in high-loss and -noise scenarios. To harness its robustness, we construct a source for high-dimensional time-bin entangled photons optimized for h...
Thermodynamic Recycling in Quantum Computing: Demonstration Using the Harrow-Hassidim-Lloyd Algorithm and Information Erasure
Nobumasa Ishida, Yoshihiko Hasegawa·Jan 12, 2026
Branch selection, including postselection, is a standard method for implementing nonunitary transformations in quantum algorithms. Conventionally, states associated with unsuccessful branches are discarded and treated as useless. Here we propose a ge...
Bias-Aware BP Decoding of Quantum Codes via Directional Degeneracy
Mohammad Rowshan·Jan 12, 2026
We study directionally informed belief propagation (BP) decoding for quantum CSS codes, where anisotropic Tanner-graph structure and biased noise concentrate degeneracy along preferred directions. We formalize this by placing orientation weights on T...
Quantum Error Correction and Detection for Quantum Machine Learning
Eromanga Adermann, Haiyue Kang, Martin Sevior +1 more·Jan 12, 2026
At the intersection of quantum computing and machine learning, quantum machine learning (QML) is poised to revolutionize artificial intelligence. However, the vulnerability of the current generation of quantum computers to noise and computational err...
Geometry-Aware LoRaWAN Gateway Placement in Dense Urban Cities Using Digital Twins
Abdikarim Mohamed Ibrahim, Rosdiadee Nordin·Jan 12, 2026
LoRaWAN deployments rely on rough range estimates or simplified propagation models to decide where to place/mount gateways. As a result, operators have limited visibility into how rooftop choice, streets, and building shadowing jointly affect coverag...
Digital Twin for Ultra-Reliable & Low-Latency 6G Wireless Communications in Dense Urban City
Abdikarim Mohamed Ibrahim, Rosdiadee Nordin·Jan 12, 2026
High-frequency deployments in dense cities are difficult to plan because coverage, interference, and service reliability depend sensitively on local morphology. This paper develops a geometric Digital Twin (DT) of the Sunway City and uses it to study...