Papers
Live trends in quantum computing research, updated daily from arXiv.
Total Papers
27,694
This Month
1,159
Today
0
Research Volume
13,003 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
Noise-Resilient Quantum Chemistry with Half the Qubits
Shane McFarthing, Aidan Pellow-Jarman, Francesco Petruccione·Feb 1, 2026
Sample-based quantum diagonalization (SQD) offers a powerful route to accurate quantum chemistry on noisy intermediate-scale quantum (NISQ) devices by combining quantum sampling with classical diagonalization. Here we introduce HSQD, a novel half-qub...
Wigner Function Shapelets I : formalism
Shun Arai·Feb 1, 2026
We extend shapelets for the analysis of galaxy images to be available in a phase space, introducing \textit{Wigner Function Shapelets (WFS)}. Whereas conventional shapelets expand images separately in configuration or Fourier space using Hermite-Gaus...
Suppression of Decoherence at Exceptional Transitions
Mei-Lin Li, Zuo Wang, Liang He·Feb 1, 2026
Decoherence is strongly influenced by environmental criticality, with conventional Hermitian critical points typically enhancing the loss of quantum coherence. Here, we show that this paradigm is fundamentally altered in non-Hermitian environments. F...
The Quantum Learning Menagerie (A survey on Quantum learning for Classical concepts)
Sagnik Chatterjee·Feb 1, 2026
This paper surveys various results in the field of Quantum Learning theory, specifically focusing on learning quantum-encoded classical concepts in the Probably Approximately Correct (PAC) framework. The cornerstone of this work is the emphasis on qu...
A Deflationary Account of Quantum Theory and its Implications for the Complex Numbers
Jacob A. Barandes·Feb 1, 2026
Why does quantum theory need the complex numbers? With a view toward answering this question, this paper argues that the usual Hilbert-space formalism is a special case of the general method of Markovian embeddings. This paper then describes the indi...
Tripartite quantum steering in Schwarzschild spacetime
Guang-Wei Mi, Xiaofen Huang, Tinggui Zhang·Feb 1, 2026
We investigate the effects of Hawking radiation on quantum steering and steering asymmetry in a tripartite system embedded in Schwarzschild spacetime. All tripartite steering types were classified,comprising three "1 to 2" and three "2 to 1" steering...
Spectral moments of Bures-Hall ensemble and applications to entanglement entropy
Linfeng Wei, Youyi Huang, Lu Wei·Feb 1, 2026
We study spectral moments of the Bures-Hall random matrices ensemble. The main result establishes a recurrence relation for the $k$-th spectral moment valid for a real-valued $k$, in contrast to prevailing results in the literature of different ensem...
Designing Extremely Low-Power Topological Transistors with 1T'-MoS2 and HZO for Cryogenic Applications.
Yosep Park, Yungyeong Park, Hyeonseok Choi +2 more·Feb 1, 2026
Large-scale quantum computing requires cryogenic electronic controllers such as control/readout and routing circuits. However, current technologies face high-power dissipation problems, hindering large-scale qubit integration. Here, we theoretically ...
Adaptive Quantum-Safe Cryptography for 6G Vehicular Networks via Context-Aware Optimization
Poushali Sengupta, Mayank Raikwar, Sabita Maharjan +2 more·Feb 1, 2026
Powerful quantum computers in the future may be able to break the security used for communication between vehicles and other devices (Vehicle-to-Everything, or V2X). New security methods called post-quantum cryptography can help protect these systems...
Electro-optic conversion of itinerant Fock states
Thomas Werner, Erfan Riyazi, Samarth Hawaldar +10 more·Jan 31, 2026
Superconducting qubits are a leading candidate for utility-scale quantum computing due to their fast gate speeds and steadily decreasing error rates. The requirement for millikelvin operating temperatures, however, creates a significant scaling bottl...
Noise Resilient 1SDIQKD for Practical Quantum Networks
Syed M Arslan, Muhammad T Rahim, Asad Ali +2 more·Jan 31, 2026
One-sided device-independent quantum key distribution (1SDI-QKD) offers a practical middle ground between fully device-independent protocols and standard QKD, achieving security with detection efficiencies as low as 50.1\% on the untrusted side. Howe...
Asymmetry and dynamical criticality
Andesson B. Nascimento, Lucas Chibebe Céleri·Jan 31, 2026
Symmetries play a central role in both equilibrium and nonequilibrium phase transitions, yet their quantitative characterization in dynamical quantum phase transitions (DQPTs) remains an open challenge. In this work, we establish a direct connection ...
Universal Quantum Birthmark: Ghost of the quantum past
Ivy Xiaoya, Anton M. Graf, Eric J. Heller +1 more·Jan 31, 2026
Quantum dynamics retains a permanent and universal memory of its initial conditions, even in systems whose spectra display fully chaotic, random-matrix behavior. This effect, known as the quantum birthmark, appears as an enhancement of the long-time ...
Sublinear Time Quantum Algorithm for Attention Approximation
Zhao Song, Jianfei Xue, Jiahao Zhang +1 more·Jan 31, 2026
Given the query, key and value matrices $Q, K, V\in \mathbb{R}^{n\times d}$, the attention module is defined as $\mathrm{Att}(Q, K, V)=D^{-1}AV$ where $A=\exp(QK^\top/\sqrt{d})$ with $\exp(\cdot)$ applied entrywise, $D=\mathrm{diag}(A{\bf 1}_n)$. The...
Higher-order transformations of bidirectional quantum processes
Luca Apadula, Alessandro Bisio, Giulio Chiribella +2 more·Jan 31, 2026
Bidirectional devices are devices for which the roles of the input and output ports can be exchanged. Mathematically, these devices are described by bistochastic quantum channels, namely completely positive linear maps that are both trace-preserving ...
Analysis of Hessian Scaling for Local and Global Costs in Variational Quantum Algorithm
Yihan Huang, Yangshuai Wang·Jan 31, 2026
Barren plateaus in variational quantum algorithms are typically described by gradient concentration at random initialization. In contrast, rigorous results for the Hessian, even at the level of entry-wise variance, remain limited. In this work, we an...
Energy Absorption Interferometry
Stafford Withington, Willem Jellema·Jan 31, 2026
Energy Absorption Interferometry (EAI) is a technique for measuring the responsivities and complex-valued spatial polarimetric forms of the individual degrees of freedom through which a many-body system can absorb energy. It was originally formulated...
Spin interferometry in a beam of ultracold molecules
R. A. Jenkins, M. T. Ziemba, F. J. Collings +6 more·Jan 31, 2026
We describe a spin interferometer using ultracold YbF molecules and develop the complete set of techniques needed to measure the electron's electric dipole moment, $d_e$, with this apparatus. The molecules are cooled in an optical molasses and prepar...
Quantum Geometry and Nonlinear Responses in Magnetic and Topological Quantum Materials
M. Mehraeen·Jan 31, 2026
This dissertation explores various nonlinear responses that arise from the rich interplay between quantum geometry, disorder, magnetism and topology in quantum materials. In addition to presenting generalizations of quantum kinetic theory, Kubo formu...
Enhanced Phase Estimation via Photon-Added Two-Mode Squeezed States and Kerr Nonlinearity
Zekun Zhao, Qingqian Kang, Teng Zhao +3 more·Jan 31, 2026
Quantum metrology employs quantum resources to achieve measurement precision beyond classical limits. This work investigates a Mach--Zehnder interferometer incorporating a Kerr nonlinear phase shifter, with photon-added two-mode squeezed coherent sta...