Papers
Live trends in quantum computing research, updated daily from arXiv.
Total Papers
27,980
This Month
1,396
Today
0
Research Volume
13,215 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
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...
Another generalization of Hadamard test: Optimal sample complexities for learning functions on the unitary group
Daiki Suruga·Sep 6, 2025
Estimating properties of unknown unitary operations is a fundamental task in quantum information science. While full unitary tomography requires a number of samples to the unknown unitary scaling linearly with the dimension (implying exponentially wi...
Hybrid-Integrated InGaAs/InP SPAD Arrays for Quantum Communications
Joseph A. Dolphin, Rosemary O. E. Scowen, Louise M. Wells +7 more·Sep 5, 2025
Photonic integration is a promising route to miniaturise the hardware of quantum key distribution (QKD), yet the monolithic integration of single photon detectors remains a significant challenge. QKD receiver chips integrating superconducting detecto...
A Modular, Adaptive, and Scalable Quantum Factoring Algorithm
Alok Shukla, Prakash Vedula·Sep 5, 2025
Shor's algorithm for integer factorization offers an exponential speedup over classical methods but remains impractical on Noisy Intermediate Scale Quantum (NISQ) hardware due to the need for many coherent qubits and very deep circuits. Building on o...
Complexity of Quadratic Quantum Chaos
Pallab Basu, Suman Das, Pratik Nandy·Sep 4, 2025
We investigate minimal two-body Hamiltonians with random interactions that generate spectra resembling those of Gaussian random matrices, a phenomenon we term quadratic quantum chaos. Unlike integrable two-body fermionic systems, the corresponding ha...
Forecasting Low-Dimensional Turbulence via Multi-Dimensional Hybrid Quantum Reservoir Computing
L. Salatino, L. Mariani, A. Giordano +9 more·Sep 4, 2025
The prediction of complex dynamics remains an open problem across many domains of physics, where nonlinearities and multiscale interactions severely limit the reliability of conventional forecasting methods. Quantum reservoir computing (QRC) has emer...
Detection of noise correlations in two qubit systems by Machine Learning
Dario Fasone, Shreyasi Mukherjee, Dario Penna +5 more·Sep 3, 2025
We introduce and validate a machine-learning assisted quantum sensing protocol to classify spatial and temporal correlations of classical noise affecting two ultrastrongly coupled qubits. We consider six distinct classes of Markovian and non-Markovia...
Evaluating Security Properties in the Execution of Quantum Circuits
Paolo Bernardi, Antonio Brogi, Gian-Luigi Ferrari +1 more·Sep 3, 2025
Quantum computing is a disruptive technology that is expected to offer significant advantages in many critical fields (e.g. drug discovery and cryptography). The security of information processed by such machines is therefore paramount. Currently, mo...
Quantum algorithms for Uhlmann transformation
Takeru Utsumi, Y. Nakata, Qisheng Wang +1 more·Sep 3, 2025
Uhlmann's theorem is a central result in quantum information theory, which associates the closeness of two quantum states with that of their purifications. The theorem also well characterizes a fundamental task: how close a pure quantum state can be ...
Effective Hamiltonian for an off-resonantly driven qubit-cavity system
Martin Jirlow, Kunal Helambe, Axel Eriksson +2 more·Sep 3, 2025
Accurate modeling of driven light-matter interactions is essential for quantum technologies, where natural and synthetic atoms are used to store and process quantum information, mediate interactions between bosonic modes, and enable nonlinear operati...
Treasure Hunt in Anonymous Graphs with Quantum Pebbles by Oblivious Agents
Gaurav Gaur, B. Gorain, R. Singh +1 more·Sep 3, 2025
We investigate the problem of finding a static treasure in anonymous graphs using oblivious agents and introduce a novel approach that leverages quantum information. In anonymous graphs, vertices are unlabelled, indistinguishable, and edges are local...
Quantum optical reset with classical memory
E. Kiktenko, O. M. Sotnikov, I. A. Iakovlev +5 more·Sep 3, 2025
Dynamic quantum circuits generate states that depend on the measurement results obtained during circuit execution. To date such a quantum computing model has mainly been implemented with qubit-based superconducting hardware utilizing reset operations...
Programmable Quantum Matter: Heralding Large Cluster States in Driven Inhomogeneous Spin Ensembles
Pratyush Anand, Louis Follet, Odiel Hooybergs +1 more·Sep 3, 2025
Atom-like emitters in solids are promising platforms for quantum sensing and information processing, but inhomogeneities in the emitter fine structure complicate quantum control. We present a framework that leverages this diversity to reduce the reso...
Exponentially Enhanced Tripartite Coupling in Quantum Nonlinear Magnonics
Xue-Chun Chen, Zi-Jie Wang, Sheng-Bo Zheng +2 more·Sep 2, 2025
Strong and controllable tripartite interactions play a pivotal role in quantum information and nonlinear quantum optics, yet challenging to realize. In this work, we propose a hybrid system consisting of a nitrogen-vacancy (NV) center coupled to Kerr...
The Chaotic Art: Quantum Representation and Manipulation of Color
Guosheng Hu·Sep 1, 2025
Due to its unique computing principles, quantum computing technology will profoundly change the spectacle of color art. Focusing on experimental exploration of color qubit representation, color channel processing, and color image generation via quant...
Measuring Less to Learn More: Quadratic Speedup in learning Nonlinear Properties of Quantum Density Matrices
Yukun Zhang, Yusen Wu, You Zhou +1 more·Sep 1, 2025
A fundamental task in quantum information science is to measure nonlinear functionals of quantum states, such as $\mathrm{Tr}(\rho^k O)$. Intuitively, one expects that computing a $k$-th order quantity generally requires $O(k)$ copies of the state $\...
Classical algorithms for measurement-adaptive Gaussian circuits
Changhun Oh, Youngrong Lim·Aug 31, 2025
Gaussian building blocks are essential for photonic quantum information processing, and universality can be practically achieved by equipping Gaussian circuits with adaptive measurement and feedforward. The number of adaptive steps then provides a na...
Optimal quantum likelihood estimation
A. Levi, Ziv Ossi, Eliahu Cohen +1 more·Aug 31, 2025
A hybrid quantum–classical algorithm is a computational scheme in which quantum circuits are used to extract information that is then processed by a classical routine to guide subsequent quantum operations. These algorithms are especially valuable in...
A simple universal routing strategy for reducing the connectivity requirements of quantum LDPC codes
Guangqi Zhao, F. Yan, Xiaotong Ni·Aug 31, 2025
Quantum low-density parity-check codes reduce quantum error correction overhead but require dense, long-range connectivity that challenges hardware implementation, particularly for superconducting processors. We address this problem by demonstrating ...
Genuine multientropy, dihedral invariants and Lifshitz theory
Clément Berthière, Paul Gaudin·Aug 30, 2025
Multi-invariants are local-unitary invariants of state replicas introduced as potential probes of multipartite entanglement and correlations in quantum many-body systems. In this paper, we investigate two multi-invariants for tripartite pure states, ...