Papers
Live trends in quantum computing research, updated daily from arXiv.
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13,015 papers in 12 months (-3% vs prior quarter)
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Efficient Quantum Chemistry Calculations on Noisy Quantum Hardware
Nora M. Bauer, Kubra Yeter-Aydeniz, G. Siopsis·Mar 4, 2025
A hardware‐efficient optimization scheme is presented for quantum chemistry calculations, utilizing the Sampled Quantum Diagonalization (SQD) method. This algorithm, optimized SQD (SQDOpt), combines the classical Davidson method technique with added ...
Fragility of Magic State Distillation under Imperfect Measurements
Yunzhe Zheng, Yuanchen Zhao, Dong E. Liu·Mar 3, 2025
Magic state distillation (MSD) is the leading approach to generate the non-Clifford resources required for universal fault-tolerant quantum computation. While most analyses assume ideal measurements in the distillation process, this assumption breaks...
A thermal-noise-resilient microwave quantum network up to 4 K
Jiawei Qiu, Zihao Zhang, Zilin Wang +9 more·Mar 3, 2025
Quantum communication at microwave frequencies has been fundamentally constrained by the susceptibility of microwave photons to thermal noise, hindering their application in scalable quantum networks. Here we demonstrate a thermal-noise-resilient mic...
The carbon nanotube gatemon qubit
H. Riechert, S. Annabi, A. Peugeot +8 more·Mar 3, 2025
Gate-tunable transmon qubits are based on quantum conductors used as weak links within hybrid Josephson junctions. These gatemons have been implemented in just a handful of systems, all relying on extended conductors, namely epitaxial semiconductors ...
Optimizing Low-Energy Carbon IIoT Systems With Quantum Algorithms: Performance Evaluation and Noise Robustness
Kshitij Dave, Nouhaila Innan, B. K. Behera +3 more·Mar 2, 2025
Low-energy carbon Internet of Things (IoT) systems are essential for sustainable development, as they reduce carbon emissions while ensuring efficient device performance. Although classical algorithms manage energy efficiency and data processing with...
iSWAP gate with polar molecules: Robustness criteria for entangling operations
Matteo Bergonzoni, Sven Jandura, G. Pupillo·Feb 28, 2025
Ultracold polar molecules in optical lattices or tweezer arrays offer a promising platform for quantum information processing and simulation, thanks to their rich internal structure and long-range dipolar interactions. Recent experimental advances no...
Improving error suppression with noise-aware decoding
Evan T. Hockings, Andrew C. Doherty, Robin Harper·Feb 28, 2025
We demonstrate that the performance of quantum error correction can be improved with noise-aware decoders that are calibrated to the likelihood of physical error configurations in a device. We show that noise-aware decoding increases the error suppre...
Bogoliubov-Born-Green-Kirkwood-Yvon hierarchy for quantum error mitigation
Theo Saporiti, Oleg Kaikov, V. Sazonov +1 more·Feb 28, 2025
Mitigation of quantum errors is critical for current NISQ devices. In the present work, we address this task by treating the execution of quantum algorithms as the time evolution of an idealized physical system. We use knowledge of its physics to ass...
Hybrid quantum neural networks with variational quantum regressor for enhancing QSPR modeling of CO2-capturing amine
Hyein Cho, Jeonghoon Kim, Kyoung Tai No +1 more·Feb 28, 2025
Accurate amine property prediction is essential for optimizing CO2 capture efficiency in post-combustion processes. Quantum machine learning (QML) can enhance predictive modeling by leveraging superposition, entanglement, and interference to capture ...
Distributed Variational Quantum Algorithm with Many-qubit for Optimization Challenges
Seongmin Kim, In-Saeng Suh·Feb 28, 2025
Optimization problems are critical across various domains, yet existing quantum algorithms, despite their great potential, struggle with scalability and accuracy due to excessive reliance on entanglement. To address these limitations, we propose vari...
Leveraging Qubit Loss Detection in Fault Tolerant Quantum Algorithms
Gefen Baranes, Madelyn Cain, J. Pablo Bonilla Ataides +5 more·Feb 27, 2025
Qubit loss errors constitute a dominant source of noise in many quantum hardware systems, particularly in neutral atom quantum computers. We develop a theoretical framework to effectively detect and correct loss errors in logical algorithms and lever...
Fault-Resilience of Dissipative Processes for Quantum Computing
James Purcell, Abhishek Rajput, Toby Cubitt·Feb 27, 2025
Dissipative processes have long been proposed as a means of performing computational tasks on quantum computers that may be intrinsically more robust to noise. In this work, we prove two main results concerning the error-resilience capabilities of tw...
High-Fidelity Integrated Quantum Photonic Logic Via Robust Directional Couplers
Jonatan Piasetzky, Khen Cohen, Yehonatan Drori +4 more·Feb 27, 2025
Scalable quantum information processing with integrated photonics requires quantum logic operations with high fidelity and robustness. Directional couplers, the fundamental elements enabling quantum interference and logic operations, are inherently s...
Exploring experimental limit of deep quantum signal processing using a trapped-ion simulator
J. Bu, Lei Zhang, Zhan Yu +12 more·Feb 27, 2025
Quantum signal processing (QSP), which enables systematic polynomial transformations on quantum data through sequences of qubit rotations, has emerged as a fundamental building block for quantum algorithms and data re-uploading quantum neural network...
Quantum Natural Gradient optimizer on noisy platforms: QAOA as a case study
Federico Dell'Anna, Rafael Gomez-Lurbe, Armando Pérez +1 more·Feb 27, 2025
We investigate the performance of the Quantum Natural Gradient (QNG) optimizer in the presence of noise. Specifically, we evaluate the efficacy of QNG within the Quantum Approximate Optimization Algorithm (QAOA) for finding the ground state of the Tr...
Quantum low-density parity-check codes for erasure-biased atomic quantum processors
Laura Pecorari, G. Pupillo·Feb 27, 2025
Identifying the best families of quantum error correction (QEC) codes for near-term experiments is key to enabling fault-tolerant quantum computing. Ideally, such codes should have low overhead in qubit number, high physical error thresholds, and mod...
AI-Powered Noisy Quantum Emulation: Generalized Gate-Based Protocols for Hardware-Agnostic Simulation
Matthew Ho, Jun Yong Khoo, A. Mak +1 more·Feb 27, 2025
Quantum computer emulators model the behavior and error rates of specific quantum processors. Without accurate noise models in these emulators, it is challenging for users to optimize and debug executable quantum programs prior to running them on the...
Applications of the Quantum Phase Difference Estimation Algorithm to the Excitation Energies in Spin Systems on a NISQ Device
Boni Paul, S. B. Mandal, Kenji Sugisaki +1 more·Feb 27, 2025
The Quantum Phase Difference Estimation (QPDE) algorithm, as an extension of the Quantum Phase Estimation (QPE), is a quantum algorithm designed to compute the differences of two eigenvalues of a unitary operator by exploiting the quantum superpositi...
The Octo-Rail Lattice: a four-dimensional cluster state design
Emil E. B. Østergaard, Niklas Budinger, Mikkel V. Larsen +3 more·Feb 26, 2025
Macronode cluster states are promising for fault-tolerant continuous-variable quantum computation, combining gate teleportation via homodyne detection with the Gottesman-Kitaev-Preskill code for universality and error correction. While the two-dimens...
Comparison of encoding schemes for quantum computing of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>S</mml:mi><mml:mo>></mml:mo><mml:mn>1</mml:mn><mml:mi>/</mml:mi><mml:mn>2</mml:mn></mml:mrow></mml:math> spin chains
E. Lotstedt, Kaoru Yamanouchi·Feb 26, 2025
We compare four different encoding schemes for the quantum computing of spin chains with a spin quantum number $S>1/2$: a compact mapping, a direct (or one-hot) mapping, a Dicke mapping, and a qudit mapping. The three different qubit encoding schemes...