Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Quantum Cramer-Rao Precision Limit of Noisy Continuous Sensing
Dayou Yang, Moulik Ketkar, Koenraad Audenaert +2 more·Apr 16, 2025
Quantum sensors hold considerable promise for precision measurement, yet their capabilities are inherently constrained by environmental noise. A fundamental task in quantum sensing is determining the precision limit of noisy sensor devices. For conti...
Logical multi-qubit entanglement with dual-rail superconducting qubits
Wenhui Huang, Xuandong Sun, Jiawei Zhang +21 more·Apr 16, 2025
Recent advances in quantum error correction (QEC) across hardware platforms have demonstrated operation near and beyond the fault-tolerance threshold, yet achieving exponential suppression of logical errors through code scaling remains a critical cha...
Network-Integrated Decoding System for Real-Time Quantum Error Correction with Lattice Surgery
Namitha Liyanage, Yue Wu, Emmet Houghton +1 more·Apr 16, 2025
Existing real-time decoders for surface codes are limited to isolated logical qubits and do not support logical operations involving multiple logical qubits. We present Deconet, a first-of-its-kind decoding system that scales to thousands of logical ...
Advancing quantum simulations of nuclear shell model with noise-resilient protocols
Nifeeya Singh, P. Siwach, P. Arumugam·Apr 16, 2025
Some of the computational limitations in solving the nuclear many-body problem could be overcome by utilizing quantum computers. The nuclear shell-model calculations providing deeper insights into the properties of atomic nuclei, is one such case wit...
Fault Tolerant Quantum Simulation via Symplectic Transvections
Zhuangzhuang Chen, Jack Owen Weinberg, Narayanan Rengaswamy·Apr 15, 2025
Conventional approaches to fault-tolerant quantum computing realize logical circuits gate-by-gate, synthesizing each gate independently on one or more code blocks. This incurs excess overhead and doesn't leverage common structures in quantum algorith...
Q-Cluster: Quantum Error Mitigation Through Noise-Aware Unsupervised Learning
Hrushikesh Pramod Patil, Dror Baron, Huiyang Zhou·Apr 15, 2025
Quantum error mitigation (QEM) is critical in reducing the impact of noise in the pre-fault-tolerant era, and is expected to complement error correction in fault-tolerant quantum computing (FTQC). In this paper, we propose a novel QEM approach, Q-Clu...
Assessing Tensor Network Quantum Emulators for Hamiltonian Simulation of Pharmaceutical Molecules: Challenges and Limitations in Drug Discovery Applications
Marek Kowalik, E. Michael, Peter Pog'any +1 more·Apr 15, 2025
Quantum computing holds promise for revolutionizing computational chemistry simulations, particularly in drug discovery. However, current quantum hardware is limited by noise and scale, necessitating bridging technologies. This study provides an init...
Exponentially Decaying Quantum Simulation Error with Noisy Devices
Jue Xu, Chu Zhao, Junyu Fan +1 more·Apr 14, 2025
Quantum simulation is a promising way toward practical quantum advantage, but noise in current quantum hardware poses a significant obstacle. We prove that not only the physical error but also the algorithmic error in a single Trotter step decreases ...
Qiskit Quantum Circuits Posit Singlet state in Radical Pair-based Magnetoreception of Migratory Birds
Hillol Biswas, Spyridon Talaganis·Apr 14, 2025
Quantum computing applications in diverse domains are emerging rapidly. Given the limitations of classical computing techniques, the peculiarity of quantum circuits, which can observe quantum phenomena such as superposition, entanglement, and quantum...
Quantum Image Loading: Hierarchical Learning and Block-Amplitude Encoding
H. Gharibyan, H. Karapetyan, Tigran Sedrakyan +4 more·Apr 14, 2025
Given the excitement for the potential of quantum computing for machine learning methods, a natural subproblem is how to load classical data into a quantum state. Leveraging insights from [GST24] where certain qubits play an outsized role in the ampl...
A Piece of QAICCC: Towards a Countermeasure Against Crosstalk Attacks in Quantum Servers
Yoann Marquer, Domenico Bianculli·Apr 14, 2025
Quantum computing, while allowing for processing information exponentially faster than classical computing, is far from becoming a personal commodity. Indeed, because of cost and needs for ultra-cold temperature, shielded environment, and complex wir...
Information storage and transmission under Markovian noise
Satvik Singh, Nilanjana Datta·Apr 14, 2025
We study the information transmission capacities of quantum Markov semigroups $(\Psi^t)_{t\in \mathbb{N}}$ acting on $d-$dimensional quantum systems. We show that, in the limit of $t\to \infty$, the capacities can be efficiently computed in terms of ...
Implementing and benchmarking dynamically corrected gates on superconducting devices using space curve quantum control
Hisham Amer, Evangelos Piliouras, Edwin Barnes +1 more·Apr 14, 2025
We use Space Curve Quantum Control (SCQC) to design, experimentally demonstrate, and benchmark dynamically corrected single-qubit gates on IBM hardware, comparing their performance to that of the standard gates provided by IBM. Our gates are designed...
Towards a Digital Twin of Noisy Quantum Computers: Calibration-Driven Emulation of Transmon Qubits
Ronny Muller, Maximilian Zanner, Mika Schielein +8 more·Apr 11, 2025
We develop a parametric error model to construct a digital twin of a superconducting transmon qubit device. The model parameters are extracted from hardware calibration data and supplementary benchmarking circuits, providing a dynamic, system-specifi...
Hybrid quantum optimization in the context of minimizing traffic congestion
J. Villanueva, Gary J. Mooney, Bhaskar Roy Bardhan +3 more·Apr 11, 2025
Traffic optimization on roads is a highly complex problem, with one important aspect being minimization of traffic congestion. By mapping to an Ising formulation of the traffic congestion problem, we benchmark solutions obtained from the Quantum Appr...
Efficient Formal Verification of Quantum Error Correcting Programs
Qifan Huang, Li Zhou, Wang Fang +2 more·Apr 10, 2025
Quantum error correction (QEC) is fundamental for suppressing noise in quantum hardware and enabling fault-tolerant quantum computation. In this paper, we propose an efficient verification framework for QEC programs. We define an assertion logic and ...
Benchmarking weak randomness in Quantum and Natural Sources
Maciej Stankiewicz, Roberto Salazar, Mikołaj Czechlewski +7 more·Apr 9, 2025
Private randomness is a fundamental resource for cryptography, security proofs, and information processing. Quantum devices offer a unique advantage by amplifying weak randomness sources in regimes unattainable by classical means. A central theoretic...
Cross-Platform Benchmarking of Near-Term Quantum Optimisation Algorithms
Kieran McDowall, Theodoros Kapourniotis, Christopher Oliver +2 more·Apr 9, 2025
Quantum computers show potential for achieving computational advantage over classical computers, with many candidate applications in combinatorial optimisation. We present an application level benchmarking framework for near-term quantum optimisation...
Machine Learning Approach towards Quantum Error Mitigation for Accurate Molecular Energetics
Srushti Patil, D. Mondal, Rahul Maitra·Apr 9, 2025
Despite significant efforts, the realization of the hybrid quantum-classical algorithms has predominantly been confined to proof-of-principles, mainly due to the hardware noise. With fault-tolerant implementation being a long-term goal, going beyond ...
Characterising the failure mechanisms of error-corrected quantum logic gates
Robin Harper, C. Lain'e, Evan T. Hockings +4 more·Apr 9, 2025
Mid-circuit measurements used in quantum error correction are essential in quantum computer architecture, as they read out syndrome data and drive logic gates. Here, we use a heavy-hex code prepared on a superconducting qubit array to investigate how...