Papers
Live trends in quantum computing research, updated daily from arXiv.
Total Papers
33,580
This Month
455
Today
0
Research Volume
16,618 papers in 12 months (-31% vs prior quarter)
Research Focus Areas
Papers by research theme (12 months). Hover for details.
Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Environmental Control Extends Beyond Quantum Dephasing in Exciton Energy Transfer
Junhua Zhou, Tianrui Chen, Dehao Yuan +8 more·Aug 24, 2026
Excitation-energy transfer underpins the conversion of light into usable energy in photosynthetic organisms and serves as a paradigm for evolutionary optimized transport in open quantum systems. Although this process is often described as incoherent ...
Quantifying the dimensionality of multiparticle entanglement via partition rank
Sophia Denker, Ismaël Septembre, Robin Krebs +1 more·Aug 24, 2026
The usefulness of entanglement as a resource in quantum technologies increases for larger systems, that is, if more particles or higher-dimensional quantum systems are considered. Yet, the interplay between dimensionality and multiparticle entangleme...
Exact Fock-State Preparation with $n^{1/4}$ Circuit Depth
Tanay Roy·Aug 24, 2026
Efficient, deterministic, and high-fidelity preparation of large Fock states is essential for scaling bosonic quantum technologies and exploring quantum phenomena at large excitation energies. We introduce a deterministic one-parameter (D1p) protocol...
Dual-Isotope Sympathetic Cooling in a Long Ion Chain
Tianyi Wang, Marko Cetina·Aug 24, 2026
Owing to their high controllability and connectivity, one-dimensional ion chains are attractive building blocks for near-term quantum computers. However, long ion chains are susceptible to motional heating caused by fluctuating external electric fiel...
Quantum-Geometric Length Scale for Long-distance Squeezing in Bosonic Bogoliubov Systems
Sonu Verma, Sangmo Cheon, Myung-Joong Hwang +1 more·Aug 24, 2026
Multimode squeezing is a key resource for continuous-variable quantum technologies, but its spatial range in bosonic lattices is usually tied to dispersive propagation. Here we show that parametric pairing can create an exactly flat Bogoliubov band s...
Entanglement-enhanced fluctuation-free daemonic ergotropy with random measurements
Saptarshi Roy, Pritam Halder, Tamal Guha +1 more·Aug 24, 2026
Optimized daemonic ergotropy can make entanglement thermodynamically dispensable in measurement-assisted work extraction: for a fixed system marginal, quantum-classical states can reproduce the maximal work obtainable by optimizing the auxiliary meas...
Nonlocality is the missing design rule for topological photonics
Fatemeh Davoodi·Aug 24, 2026
Topological photonics has provided powerful design rules for routing and localizing light through geometry, symmetry and engineered coupling. However, fabricated nanophotonic and plasmonic devices rarely realize only the local or short-range interact...
Instantons in a Double-Well are Poisson Distributed
Jacob Shapiro·Aug 24, 2026
We give a rigorous realization of the dilute instanton picture for a semiclassical Schrödinger operator with a symmetric double-well potential on $\mathbb{R}^n$. Using a localized Feynman--Kac representation, we decompose the heat-kernel trace accord...
Exact Quasiprobability Hierarchy of the Double-Morse Oscillator: From Potential Geometry to Operator Ordering
F. Chogle, B. Teklu, M. F. Pereira·Aug 24, 2026
Phase-space and quasiprobability methods play key roles across quantum technologies, characterizing localization, non-Gaussianity, nonclassical resources, and coarse-graining. We present a representation-consistent analysis of the lowest quasi-exact ...
Efficient Computation of QKD Key Rates without Semidefinite Programming
Bence Temesi, Antoine Gansel, Gereon Koßmann +1 more·Aug 24, 2026
Translating observed data into a reliable estimate of the secure key rate is a crucial step for operating a quantum key distribution device. We provide a computational method for this task that only requires eigenvalue computations and is therefore b...
Non-Hermitian Generalization of Bloch Sphere in Spacetime Algebra
Chih-Wei Wang·Aug 24, 2026
We establish a geometric generalization of the Bloch sphere for two-level quantum systems with non-Hermitian Hamiltonians using the Spacetime Algebra (STA) formulation. By lifting the state density operator from the even subalgebra to the full STA, w...
Quantum Monte Carlo in the Age of Many-Body Quantum Information
Yi-Ming Ding, Bin-Bin Mao, Zheng Yan·Aug 24, 2026
Quantum Monte Carlo (QMC) methods are among the central numerical tools for studying strongly correlated quantum many-body systems, particularly in higher dimensions. As quantum information has introduced new information-theoretic perspectives and di...
Quantum observables as Fréchet sensitivity kernels
Rafael Abreu·Aug 24, 2026
We present a variational--adjoint interpretation of quantum mechanics in which the interaction between forward and adjoint wavefunctions defines a general sensitivity kernel of the system. This Fréchet interaction density quantifies how perturbations...
Taming Spacetime Overhead and Design Complexity in Distributed Fault-Tolerant Superconducting Quantum Computation
Qinjing Yu, Ke Liu·Aug 24, 2026
Scaling fault-tolerant superconducting quantum computers will likely require distributed architectures built from multiple manufacturable quantum processing units. A central question is whether noisy and slow inter-chip operations impose substantial ...
Efficient Quantum Simulation of Linearized Vlasov--Poisson Dynamics Using Trotter and THRIFT Hamiltonian Simulation Methods
Kartick Paul, Rahul V, S. Aravinda +1 more·Aug 24, 2026
The Vlasov--Poisson system provides the fundamental kinetic description of plasma and plays a central role in understanding collective phenomena such as Landau damping and wave--particle interactions. Efficient numerical simulation of these dynamics ...
Quantum Reservoir Computing with Physics-Informed Correction for Reduced-Order PDE Forecasting
Krishna Bhatia, Harsh, Shalini Devendrababu·Aug 24, 2026
We study a hybrid proposal--correction architecture for reduced-order PDE forecasting in which a pure-state quantum reservoir computer (QRC) predicts latent coefficient dynamics and a PINN-based physics-informed corrector (PIC) refines local rollout ...
Dark-Mode Control of Contrasting Entanglement and Bell Nonlocality between Mechanical Oscillators
Souvik Agasti, Philippe Djorwe, Xin Zhou·Aug 24, 2026
This study presents a detailed proposal for an optomechanical system consisting of two mechanical oscillators coupled to a common cavity, aimed at generating pure and entangled two-mode squeezed mechanical steady states. We found that the violation o...
Physics-Guided Linear Mapper for Quantum Error Mitigation
Tulsi Chaudhari, Krishna Bhatia, Shalini Devendrababu +2 more·Aug 24, 2026
We introduce a novel physics-guided linear mapper (PGLM) for quantum error mitigation that uses seven distinct interpretable features derived from circuit complexity and device calibration data. The goal is to provide a data-efficient, interpretable,...
Partial-Moment PINNs for Caldeira--Leggett Parameter Learning in Quantum Brownian Motion
Krishna Bhatia·Aug 24, 2026
We study parameter recovery in the Caldeira--Leggett (quantum Brownian) oscillator from partial moment traces. Our model is a moment-level PINN that predicts the five first/second moments and enforces the linear CL/HPZ ODEs by automatic differentiati...
What do position and time mean in the quantum wavefunction?
Mustafa Bakr, Zichi Zhang, Margot Stakenborg·Aug 24, 2026
The notation $ψ(x,t)$ is among the first pieces of quantum mechanics that students learn. It is also among the easiest to over-interpret. Because $x$ and $t$ occur as arguments of the same function, students may ask whether they have the same mathema...