Papers
Live trends in quantum computing research, updated daily from arXiv.
Total Papers
27,694
This Month
1,159
Today
0
Research Volume
13,012 papers in 12 months (-3% vs prior quarter)
Research Focus Areas
Papers by research theme (12 months). Hover for details.
Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
A dressed singlet-triplet qubit in germanium
Konstantinos Tsoukalas, Uwe von Lüpke, Alexei Orekhov +15 more·Jan 24, 2025
In semiconductor hole spin qubits, low magnetic field ($B$) operation extends the coherence time ($T_\mathrm{2}^*$) but proportionally reduces the gate speed. In contrast, singlet-triplet (ST) qubits are primarily controlled by the exchange interacti...
Single-shot detection limits of quantum illumination with multi-qudit states
Sunghwa Kang, Yonggi Jo, Jihwan Kim +3 more·Jan 24, 2025
Quantum illumination is a protocol for detecting a low-reflectivity target by using two-mode entangled states composed of signal and idler modes, which can outperform unentangled states. We study multi-qudit states for single-shot detection limits of...
Tensor-Based Binary Graph Encoding for Variational Quantum Classifiers
Shiwen An, Konstantinos Slavakis·Jan 24, 2025
Quantum computing has been a prominent research area for decades, inspiring transformative fields such as quantum simulation, quantum teleportation, and quantum machine learning (QML), which are undergoing rapid development. Within QML, hybrid classi...
Verifying Fault-Tolerance of Quantum Error Correction Codes
Kean Chen, Yuhao Liu, Wang Fang +5 more·Jan 24, 2025
Quantum computers have advanced rapidly in qubit count and gate fidelity. However, large-scale fault-tolerant quantum computing still relies on quantum error correction code (QECC) to suppress noise. Manually or experimentally verifying the fault-tol...
Adaptive Genetic Algorithms for Pulse-Level Quantum Error Mitigation
William Aguilar-Calvo, Santiago N'unez-Corrales·Jan 23, 2025
Noise remains a fundamental challenge in quantum computing, significantly affecting pulse fidelity and overall circuit performance. This paper introduces an adaptive algorithm for pulse-level quantum error mitigation, designed to enhance fidelity by ...
Distributed Quantum Error Correction Based on Hyperbolic Floquet Codes
Evan Sutcliffe, Bhargavi Jonnadula, C. Le Gall +2 more·Jan 23, 2025
Quantum computing offers significant speedups, but the large number of physical qubits required for quantum error correction introduces engineering challenges for a monolithic architecture. One solution is to distribute the logical quantum computatio...
Efficient Mitigation of Error Floors in Quantum Error Correction Using Non-Binary Low-Density Parity-Check Codes
Kenta Kasai·Jan 23, 2025
In this paper, we propose an efficient method to reduce error floors in quantum error correction using non-binary low-density parity-check (LDPC) codes. We identify and classify cycle structures in the parity-check matrix where estimated noise become...
Quantum Error Correction and $Z(2)$ Lattice Gauge Theories
Seyong Kim·Jan 23, 2025
$Z(2)$ lattice gauge theory plays an important role in the study of the threshold probability of Quantum Error Correction (QEC) for a quantum code. For certain QEC codes, such as the well-known Kitaev's toric/surface code, one can find a mapping of t...
Non-unitary Variational Quantum Eigensolver with the Localized Active Space Method and Cost Mitigation
Qiaohong Wang, Ruhee D'Cunha, Abhishek Mitra +4 more·Jan 23, 2025
Accurately describing strongly correlated systems with affordable quantum resources remains a central challenge for quantum chemistry applications on near and intermediate-term quantum computers. The localized active space self-consistent field (LASS...
Non-zero noise extrapolation: accurately simulating noisy quantum circuits with tensor networks
A. Thompson, Arie Soeteman, Chris Cade +1 more·Jan 22, 2025
Understanding the effects of noise on quantum computations is fundamental to the development of quantum hardware and quantum algorithms. Simulation tools are essential for quantitatively modelling these effects, yet unless artificial restrictions are...
Efficient simulation of parametrized quantum circuits under non-unital noise through Pauli backpropagation
Victor Martinez, Armando Angrisani, E. Pankovets +2 more·Jan 22, 2025
As quantum devices continue to grow in size but remain affected by noise, it is crucial to determine when and how they can outperform classical computers on practical tasks. A central piece in this effort is to develop the most efficient classical si...
Escaping Barren Plateau: Co-Exploration of Quantum Circuit Parameters and Architectures
Yipei Liu, Yuhong Song, Jinyang Li +4 more·Jan 22, 2025
Barren plateaus (BP), characterized by exponentially vanishing gradients that hinder the training of variational quantum circuits (VQC), present a pervasive and critical challenge in applying variational quantum algorithms to real-world applications....
Simulating quantum circuits with arbitrary local noise using Pauli Propagation
Armando Angrisani, A. A. Mele, M. S. Rudolph +2 more·Jan 22, 2025
We present a polynomial-time classical algorithm for estimating expectation values of arbitrary observables on typical quantum circuits under any incoherent local noise, including non-unital or dephasing. Although previous research demonstrated that ...
Quantum Compressive Sensing Meets Quantum Noise: A Practical Exploration
Naveed Naimipour, Collin C. D. Frink, Harry C. Shaw +2 more·Jan 21, 2025
Compressive sensing is a signal processing technique that enables the reconstruction of sparse signals from a limited number of measurements, leveraging the signal's inherent sparsity to facilitate efficient recovery. Recent works on the Quantum Comp...
QuSplit: achieving both high fidelity and throughput via job splitting on noisy quantum computers
Jinyang Li, Yuhong Song, Yipei Liu +4 more·Jan 21, 2025
With the progression into the quantum utility era, computing is shifting toward quantum-centric architectures, where multiple quantum processors collaborate with classical computing resources. Platforms such as IBM Quantum and Amazon Braket exemplify...
Practical scheme for efficient distillation of GHZ states
'Aron Rozgonyi, G'abor Sz'echenyi, Orsolya K'alm'an +1 more·Jan 21, 2025
We develop an efficient local operation and classical communication (LOCC) scheme for the distillation of Greenberger-Horne-Zeilinger (GHZ) states from tripartite systems subjected to both coherent and incoherent errors. The proposed method employs a...
Improving thermal state preparation of Sachdev–Ye–Kitaev model with reinforcement learning on quantum hardware
Akash Kundu·Jan 20, 2025
The Sachdev–Ye–Kitaev (SYK) model, known for its strong quantum correlations and chaotic behavior, serves as a key platform for quantum gravity studies. However, variationally preparing thermal states on near-term quantum processors for large systems...
Quantum Zeno blockade in optomechanical systems
Karl Pelka, Andr'e Xuereb·Jan 20, 2025
We investigate the application of the quantum Zeno effect (QZE) for the preparation of non-Gaussian states in optomechanical systems. By frequently monitoring the system, the QZE can suppress transitions away from desired subspaces of states. We show...
Optical nuclear electric resonance as single qubit gate for trapped neutral atoms
Johannes K. Krondorfer, Sebastian Pucher, Matthias Diez +2 more·Jan 19, 2025
The precise control of nuclear spin states is crucial for a wide range of quantum technology applications. Here, we propose a fast and robust single-qubit gate in $^{87}$Sr, utilizing the concept of optical nuclear electric resonance (ONER). ONER exp...
Quantum Error Mitigation in Optimized Circuits for Particle-Density Correlations in Real-Time Dynamics of the Schwinger Model
Domenico Pomarico, M. Pandey, Riccardo Cioli +5 more·Jan 18, 2025
Quantum computing gives direct access to the study of the real-time dynamics of quantum many-body systems. In principle, it is possible to directly calculate non-equal-time correlation functions, from which one can detect interesting phenomena, such ...