Papers
Live trends in quantum computing research, updated daily from arXiv.
Total Papers
27,980
This Month
1,396
Today
0
Research Volume
13,222 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
A Survey of Bargmann Invariants: Geometric Foundations and Applications
Lin Zhang, Bing Xie·Jan 5, 2026
Bargmann invariants, a class of gauge-invariant quantities arising from the overlaps of quantum state vectors, provide a profound and unifying framework for understanding the geometric structure of quantum mechanics. This survey offers a comprehensiv...
Quantum Interaction Between Free Electrons and Light Involving First-order and Second-order Process
Hongteng Lin, Xiaotong Xiong, Junjie Liu +2 more·Jan 5, 2026
Photon-induced Near-field Electron Microscopy (PINEM) effect has revealed the quantum interaction between free electrons and optical near filed, which demonstrated plenty of novel phenomena of manipulating free electron wave packet and detecting/shap...
Formal Modeling and Verification of Grover's Algorithm
H. Sun, Z. Shi, S. Chen +5 more·Jan 5, 2026
Grover's algorithm relies on the superposition and interference of quantum mechanics, which is more efficient than classical computing in specific tasks such as searching an unsorted database. Due to the high complexity of quantum mechanics, the corr...
Global Parametric Gates for Multi-qubit Entanglement
Jize Yang, Lin Guo, Haonan Xiong +8 more·Jan 5, 2026
We propose and experimentally demonstrate a global parametric gate that generates multi-qubit entangled states in a single step. By applying a parametric drive to a common qubit at precise detunings relative to computational qubits, we directly produ...
Quantum information of optical magnetometry: Semiclassical Cramer-Rao bound violation and Heisenberg scaling
Georg Engelhardt, Ming Li, Xingchang Wang +2 more·Jan 5, 2026
Optical magnetometers use the rotation of linearly polarized laser light induced by the Faraday effect for high precision magnetic field measurements. Here, we carry out an in-depth quantum information investigation, deploying two distinct models: Th...
Photon blockade effect from synergistic optical parametric amplification and driving force in Kerr-medium single-mode cavity
Zhang Zhiqiang·Jan 5, 2026
This work investigates photon blockade control in a hybrid quantum system containing a Kerr-nonlinear cavity coupled to an optical parametric amplifier (OPA). The dynamics are governed by a master equation derived from an effective Hamiltonian that i...
Physically natural metric-measure Lindbladian ensembles and their learning hardness
Caisheng Cheng, Ruicheng Bao·Jan 5, 2026
In open quantum systems, a basic question at the interface of quantum information, statistical physics, and many-body dynamics is how well can one infer the structure of noise and dissipation generators from finite-time measurement statistics alone. ...
A Survey on Applications of Quantum Computing for Unit Commitment
Milad Hasanzadeh, Ali Rajabi, Amin Kargarian·Jan 5, 2026
Unit Commitment (UC) is a core optimization problem in power system operation and electricity market scheduling. It determines the optimal on/off status and dispatch of generating units while satisfying system, operational, and market constraints. Tr...
Demonstration of Discrete-Time Quantum Walks and Observation of Topological Edge States in a Superconducting Qutrit Chain
Kun Zhou, Jian-Wen Xu, Qi-Ping Su +12 more·Jan 5, 2026
Quantum walk serves as a versatile tool for universal quantum computing and algorithmic research. However, the implementation of discrete-time quantum walks (DTQWs) with superconducting circuits is still constrained by some limitations such as operat...
Robust and fragile quantum effects in the transfer kinetics of delocalized excitons between B850 units of LH2 complexes
Seogjoo J. Jang·Jan 5, 2026
Aggregates of light harvesting 2 (LH2) complexes form the major exciton-relaying domain in the photosynthetic unit of purple bacteria. Application of a generalized master equation to pairs of the B850 units of LH2 complexes, where excitons predominan...
Two-Qubit Module Based on Phonon-Coupled Ge Hole-Spin Qubits: Design, Fabrication, and Readout at 1-4 K
D. -M. Mei, S. A. Panamaldeniya, K. -M. Dong +2 more·Jan 5, 2026
We present a device-level design for a two-qubit module based on phonon-coupled germanium (Ge) hole-spin qubits operating at $1$-$4~\mathrm{K}$. Building on prior work on phonon-engineered Ge qubits and phononic-crystal (PnC) cavities, we specify a l...
Single- and Multi-Objective Stochastic Optimization for Next-Generation Networks in the Generative AI and Quantum Computing Era
Trinh Van Chien, Bui Trong Duc, Nguyen Xuan Tung +4 more·Jan 5, 2026
Next Generation (NG) networks move beyond simply connecting devices to creating an ecosystem of connected intelligence, especially with the support of generative Artificial Intelligence (AI) and quantum computation. These systems are expected to hand...
Diffusion Computation versus Quantum Computation: A Comparative Model for Order Finding and Factoring
C. Cadavid, Paulina Hoyos, Jay Jorgenson +2 more·Jan 5, 2026
We study a hybrid computational model for integer factorization in which the only non-classical resource is access to an \emph{iterated diffusion process} on a finite graph. Concretely, a \emph{diffusion step} is defined to be one application of a sy...
A Geometric Approach to Strongly Correlated Bosons: From $N$-Representability to the Generalized BEC Force
Chih-Chun Wang, Christian Schilling·Jan 4, 2026
Building on recent advances in reduced density matrix theory, we develop a geometric framework for describing strongly correlated lattice bosons. We first establish that translational symmetry, together with a fixed pair interaction, enables an exact...
Design and Characterization of Compact Acousto-Optic-Deflector Individual Addressing System for Trapped-Ion Quantum Computing
Jiyong Yu, Kavyashree Ranawat, Andrew Van Horn +4 more·Jan 4, 2026
We present a compact design for a beam-steering system based on acousto-optic-deflectors (AODs) used as an individual addressing system for trapped-ion quantum computing. The design targets to minimize the optomechanical degrees of freedom and the op...
Revisiting the Interface between Error and Erasure Correction in Wireless Standards
Vipindev Adat Vasudevan, Homa Esfahanizadeh, Benjamin D. Kim +3 more·Jan 4, 2026
Modern 5G communication systems implement a combination of error correction and feedback-based erasure correction (HARQ/ARQ) as reliability mechanisms, which can introduce substantial delay and resource inefficiency. We propose forward erasure correc...
Variation on the theme of Jarzynski's inequality
Dani R. Castellanos, Petr Jizba·Jan 4, 2026
The Jarzynski equality, which relates equilibrium free-energy difference to an average of non-equilibrium work, plays a central role in modern non-equilibrium statistical thermodynamics. In this paper, we study a weaker consequence of this relation, ...
Quantum simulation with Rydberg ions in a Penning trap
Wilson S. Martins, Markus Hennrich, Ferdinand Schmidt-Kaler +1 more·Jan 4, 2026
Quantum simulation of interacting many-body spin systems is routinely performed with cold trapped ions, and systems with hundreds of spins have been studied in one and two dimensions. In the most common realizations of these platforms, spin degrees o...
Scattering Cross Section Formula Derived From Macroscopic Model of Detectors
Rashi Kaimal, Roderich Tumulka·Jan 4, 2026
We are concerned with the justification of the statement, commonly (explicitly or implicitly) used in quantum scattering theory, that for a free non-relativistic quantum particle with initial wave function $Ψ_0(\boldsymbol{x})$, surrounded by detecto...
Generation of circular polarized high-order harmonics from single color quantum light
Lidija Petrovic, Philipp Stammer, Maciej Lewenstein +1 more·Jan 4, 2026
The atomic response to an ultra-intense driving field produces a characteristic high-harmonic spectrum featuring a rapid drop in intensity for the lower harmonics, followed by a plateau and a sharp cutoff. This response vanishes for circularly polari...