Papers
Live trends in quantum computing research, updated daily from arXiv.
Total Papers
27,548
This Month
1,041
Today
0
Research Volume
12,908 papers in 12 months (-5% vs prior quarter)
Research Focus Areas
Papers by research theme (12 months). Hover for details.
Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Adaptive quantum metrology with large dynamic range using short one-axis twists
Tyler G. Thurtell, Akimasa Miyake·Mar 14, 2026
Phase estimation with potentially large phase values, i.e., with large dynamic range, has many applications in quantum metrology, for example to atomic clocks. A recently proposed phase estimation scheme approaches the Heisenberg scaling in this glob...
Imaging Harmonic Generation of Magnons
Anthony J. D'Addario, Kwangyul Hu, Maciej W. Olszewski +4 more·Mar 14, 2026
This work combines theory and experiment to examine the mechanisms underlying the harmonic generation of magnons. We develop a nonlinear spin-wave framework that is directly analogous to harmonic generation in nonlinear optics, and combine it with sc...
Finite-Time Braiding Dynamics within Topological Nanowire Qubits
Adrian D. Scheppe, Michael V. Pak·Mar 14, 2026
Topological Quantum Computing has largely evolved towards a paradigm of manipulating edge localized Majorana within $p$-wave topological superconducting nanowires. To bridge the gap between physical qubit systems and quantum algorithms, we perform a ...
Block-QAOA-Aware Detection with Parameter Transfer for Large-Scale MIMO
Shuai Zeng·Mar 14, 2026
Large-scale MIMO detection remains challenging because exact or near-maximum-likelihood search is difficult to scale, while available quantum resources are insufficient for directly solving full-size detection instances by QAOA. This paper therefore ...
Quantum Dynamical Entropy and Dissipative Information Flows
Giovanni Nichele, Fabio Benatti·Mar 14, 2026
The Alicki-Lindblad-Fannes dynamical (ALF) entropy measures the rate at which new information is gathered about a quantum system by inspecting its long-time evolution. We propose an extension of the ALF entropy to open quantum dynamics as a measure o...
Entropy Maximization and Weak Gibbsianity of Quasi-Free Fermionic States
Vojkan Jakšić, Claude-Alain Pillet, Anna Szczepanek·Mar 14, 2026
In their 1972 study of approach to equilibrium, Lanford and Robinson showed that gauge-invariant quasi-free states of lattice fermions maximize entropy among all translation-invariant states with a fixed two-point function, and suggested that the max...
Quantum Dynamical Entropy and non-Markovianity: a collisional model perspective
Giovanni Nichele, Fabio Benatti·Mar 14, 2026
Accessing the physical mechanisms behind non-Markovian phenomena in open quantum dynamics requires the study of the statistical properties of the joint system-environment dynamics. This is impossible at the level of the reduced dynamics of the open s...
Dynamical Simulations of Schrödinger's Equation via Rank-Adaptive Tensor Decompositions
N. Anders Petersson, Chase Hodges-Heilmann, Stefanie Günther·Mar 14, 2026
We study low-rank tensor methods for the numerical solution of Schrödinger's equation with time-independent and explicitly time-dependent Hamiltonians, motivated by large-scale simulations of many-body quantum systems and quantum computing devices su...
Revisited Quantification of the Resource Theory of Imaginarity
Yue Han, Naihong Hu·Mar 14, 2026
In this paper, we investigate the decay behaviors of three imaginarity-related metrics, specifically the $l_1$-norm-based imaginarity measure, imaginarity robustness, and imaginarity relative entropy, for arbitrary single-qubit pure initial states un...
Evidence of Uncollapsed Quantum Amplitudes After Consecutive Measurements
Christoph Adami, Lambert Giner, Jeff S. Lundeen +1 more·Mar 14, 2026
Two of the most common interpretations of quantum measurement disagree about the fate of quantum amplitudes after measurement, yet this disagreement has not previously led to experimentally distinguishable predictions. In the standard collapse pictur...
Folding-Free Zero-Noise Extrapolation by Layout-induced Noise Diversity
Debarthi Pal, Yogesh Simmhan·Mar 14, 2026
Near term quantum processors operate in a noise dominated regime, motivating error mitigation techniques that recover accurate expectation values without full fault tolerance. Zero Noise Extrapolation (ZNE) is a widely used but biased error mitigatio...
Collective Nuclear Polaritons with Coherent and Tunable Excitation Dynamics
Liufeng Yang, Jinling Wang, Huijun Li +3 more·Mar 14, 2026
We propose collective nuclear polaritons formed by hybridizing a 229Th nuclear ensemble with a vacuum-ultraviolet cavity mode generated via four-wave mixing, achieving a collective light-matter coupling that scales as $\sqrt{N}$. In the strong-coupli...
Generalized Inverses of Quantum Channels: a categorical perspective
Robin Cockett, Jean-Simon Pacaud Lemay, Priyaa Varshinee Srinivasan·Mar 14, 2026
A quantum channel is defined as being completely positive (CP) and trace preserving (TP). While not every quantum channel is invertible or reversible, every quantum channel admits various kinds of generalized inverses such as the Moore-Penrose invers...
Closed-time-path approach to the optomechanical back-reaction problem
Salvatore Butera·Mar 14, 2026
We present a perturbative closed-time-path (in-in) formulation of an optomechanical system in which a quantum field interacts with a moving mirror via radiation pressure. We derive the effective action governing the dynamics of the moving mirror, inc...
Investigating Lipkin-Meshkov-Glick Model and Criticality-Enhanced Metrology in a Coherent Ising Machine
Shuang-Quan Ma, Jing-Yi-Ran Jin, Chen-Rui Fan +2 more·Mar 14, 2026
Quantum criticality has received extensive attention due to its ability to significantly enhance quantum sensing. But its realization and control in many-body quantum systems remain challenging. We present an effective scheme to simulate the Lipkin-M...
Kirkwood-Dirac classical states based on discrete Fourier transform: Representation with directed graph
Lin-Yan Cai, Ying-Hui Yang, Zhu-Jun Zheng·Mar 14, 2026
The Kirkwood-Dirac (KD) quasiprobability distribution is a fundamental representation for quantum states and has been widely applied in quantum metrology, quantum chaos, weak values in recent years. A quantum state is KD-classical if its KD-quasiprob...
Readout-induced degradation of transmon lifetimes: interplay of TLSs and qubit spectral reshaping
Ziwen Huang, Jimmy Shih-Chun Hung, Mouktik Raha +9 more·Mar 14, 2026
Measurement backaction degrades dispersive readout of superconducting qubits even at modest drive strengths, often via the reduction of qubit lifetimes during readout. In this work, we theoretically and experimentally study this degradation and show ...
Millimeter Wave Readout of a Superconducting Qubit
Akash V. Dixit, Zachary L. Parrott, Dennis Chunikhin +3 more·Mar 14, 2026
Millimeter waves are emerging as an enabling technology for connecting and enhancing different quantum platforms such as Rydberg atoms, optomechanics, and superconducting qubits. In this work, we focus on the interaction between millimeter wave photo...
Quantum electrometry in a silicon carbide power device
Yuichi Yamazaki, Akira Kiyoi, Naoyuki Kawabata +7 more·Mar 14, 2026
For high-bias operation devices such as silicon carbide (SiC) power devices, early detection of failure mechanisms is essential to ensure reliability. This requires a method to map high electric fields with high spatial resolution, which has not been...
Electrometry of extremely-low frequencies from kHz to sub-Hz with a Rydberg-atom sensor
Aveek Chandra, Narongrit Paensin, Rainer Dumke·Mar 14, 2026
Rydberg-atom electric field sensing has shown great potential from near-DC to THz with state-of-the-art measurement metrics realized in sensitivity, phase extraction, multi-band receptivity, etc. While Rydberg-atom sensors have shown exceptional perf...