Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Simulating magic state cultivation with few Clifford terms
Kwok Ho Wan, Zhenghao Zhong, Ainhoa Zapirain·Sep 10, 2025
Building upon [arXiv:2509.01224], we present a few methods on how to simulate the non-Clifford $d=5$ magic state cultivation circuits [arXiv:2409.17595] with a sum of $\approx 8$ Clifford ZX-diagrams on average, at $0.1\%$ noise. Compared to a magic ...
Estimation of deuteron binding energy with renormalization group-based effective interactions using the variational quantum eigensolver
Sreelekshmi Pillai, S. Ramanan, V. Balakrishnan +1 more·Sep 10, 2025
We have obtained the binding energy of the deuteron on a quantum simulator using the variational quantum eigensolver for renormalization group (RG)-based low-momentum effective interactions. The binding energy (BE) has been calculated in the truncate...
Quantum Error Correction in Adversarial Regimes
Rahul Arvind, Nikhil Bansal, Dax Enshan Koh +2 more·Sep 10, 2025
In adversarial settings, where attackers can deliberately and strategically corrupt quantum data, standard quantum error correction reaches its limits. It can only correct up to half the code distance and must output a unique answer. Quantum list dec...
Carrier-Assisted Entanglement Purification
Jaemin Kim, Karthik Mohan, Sung Won Yun +1 more·Sep 9, 2025
Entanglement distillation, a fundamental building block of quantum networks, enables the purification of noisy entangled states shared among distant nodes by local operations and classical communication. Its practical realization presents several tec...
Improving fermionic variational quantum eigensolvers with Majorana swap networks
D. Fisher, S. Fldzhyan, D. V. Minaev +2 more·Sep 9, 2025
Simulating computationally hard fermionic systems is a promising application of quantum computing. However, mapping nonlocal fermionic operators to qubits often produces deep circuits, rendering such simulations impractical on near-term hardware. We ...
Recursive algorithm for constructing antisymmetric fermionic states in first quantization mapping
E. Rule, I. A. Chernyshev, I. Stetcu +2 more·Sep 8, 2025
We devise a deterministic quantum algorithm to produce antisymmetric states of single-particle orbitals in the first quantization mapping. Unlike sorting-based antisymmetrization algorithms, which require ordered input states and high Clifford-gate o...
Benchmarking Single-Qubit Gates on a Neutral Atom Quantum Processor
Artem Rozanov, Boris Bantysh, Ivan Bobrov +2 more·Sep 8, 2025
We present benchmarking results for single-qubit gates implemented on a neutral atom quantum processor using Direct Randomized Benchmarking (DRB) and Gate Set Tomography (GST). The DRB protocol involves preparing stabilizer states, applying $m$ layer...
Toward Axion Signal Extraction in Semiconductor Spin Qubits Via Spectral Engineering
Xiangjun Tan, Zhanning Wang·Sep 8, 2025
Recent advances in quantum sensing and computational technologies indicate the possibility of improving the precision of measurements aimed at detecting cosmological particles and weakly interacting massive particles using various qubit platforms. Wh...
Entanglement Structure Certification Based on Energy-Restricted State Discrimination
Carles Roch I Carceller·Sep 8, 2025
The certification of entanglement in multipartite scenarios is crucial for the advancement of quantum technologies, particularly for the realization of large-scale quantum networks. Here, we introduce a method to certify the structure of the entangle...
Enhancing Fault-Tolerant Surface Code Decoding with Iterative Lattice Reweighting
Yi Tian, Yi-Cong Zheng, Xiaoting Wang +1 more·Sep 8, 2025
Efficient and realistic error decoding is crucial for fault-tolerant quantum computation (FTQC) on near-term devices. While decoding is a classical post-processing task, its effectiveness depends on accurately modeling quantum noise, which is hardwar...
Compressing Syndrome Measurement Sequences
Benjamin Anker, M. Marvian·Sep 8, 2025
In this work, we analyze a framework for constructing fault-tolerant measurement schedules of varying lengths by combining stabilizer generators, and prove results about the distance of such schedules by combining according to classical codes. Using ...
Quantum Radar for ISAC: Sum-Rate Optimization
Abdulmohsen A. Alsaui, O. Dobre, Neel Kanth Kundu +2 more·Sep 7, 2025
Integrated sensing and communication (ISAC) is emerging as a key enabler for spectrum-efficient and hardware-converged wireless networks. However, classical radar systems within ISAC architectures face fundamental limitations under low signal power a...
From Membership-Privacy Leakage to Quantum Machine Unlearning
Jun-Jian Su, Runze He, Guanghui Li +4 more·Sep 7, 2025
Quantum Machine Learning (QML) has the potential to achieve quantum advantage for specific tasks by combining quantum computation with classical Machine Learning (ML). In classical ML, a significant challenge is membership privacy leakage, whereby an...
Tunneling of bosonic qubits under local dephasing through microscopic approach
Alberto Ferrara, Farzam Nosrati, Andrea Smirne +2 more·Sep 6, 2025
We present a microscopic derivation of a master equation for two-component bosons (bosonic qubits) which tunnel between spatially separated modes under local dephasing noise. Starting from the full system-bath Hamiltonian with Lorentzian coupling dis...
Quantum Purification for Amplitude Damping Noise
Kai Wang, Z. Peng·Sep 6, 2025
Noise poses a fundamental challenge to quantum information processing, with amplitude-damping (AD) noise being particularly detrimental. Preserving high-fidelity quantum systems therefore relies critically on effective error correction and purificati...
Practical Fidelity Limits of Toffoli Gates in Superconducting Quantum Processors
M. AbuGhanem·Sep 5, 2025
High-fidelity multi-qubit gates are a critical resource for near-term quantum computing, as they underpin the execution of both quantum algorithms and fault-tolerant protocols. The Toffoli gate (CCNOT), in particular, plays a central role in quantum ...
Unbounded-input explicit Bell inequalities for general quantum networks
Yao Xiao, Fenzhuo Guo, Haifeng Dong +1 more·Sep 5, 2025
Quantum nonlocality in networks featuring multiple independent sources underpins large-scale quantum communication and poses fundamental challenges for its characterization. In this work, we construct a family of explicit nonlinear Bell inequalities ...
High-fidelity two-qubit gates with transmon qubits using bipolar flux pulses and tunable couplers
N. Smirnov, A. Matanin, A. Ivanov +15 more·Sep 5, 2025
High-fidelity two-qubit gates are essential for scalable quantum computing. We present a scheme based on superconducting transmon qubits and a control pulse delivery protocol that enables arbitrary controlled-phase gates modulated solely by an indepe...
Adiabatic preparation of thermal states and entropy-noise relation on noisy quantum computers
Etienne Granet, Henrik Dreyer·Sep 5, 2025
We consider the problem of preparing thermal equilibrium states at finite temperature on quantum computers. Assuming thermalization, we show that states that are locally at thermal equilibrium can be prepared by evolving adiabatically an initial ther...
Monte Carlo simulation of random circuit sampling in quantum computing
A. Raab·Sep 4, 2025
We develop Monte Carlo methods for sampling random states and corresponding bit strings in qubit systems. To this end, we derive exact probability density functions that yield the Porter-Thomas distribution in the limit of large systems. We apply the...