Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Quantifying the properties of evolutionary quantum states of the XXZ spin model using quantum computing
M. P. Tonne, Kh. P. Gnatenko·Jan 15, 2026
The entanglement distance of evolutionary quantum states of a two-spin system with the XXZ model has been studied. The analysis has been conducted both analytically and using quantum computing. An analytical dependence of the entanglement distance on...
Quantum solver for single-impurity Anderson models with particle-hole symmetry
Mariia Karabin, Tanvir Sohail, Dmytro Bykov +8 more·Jan 15, 2026
Quantum embedding methods, such as dynamical mean-field theory (DMFT), provide a powerful framework for investigating strongly correlated materials. A central computational bottleneck in DMFT is in solving the Anderson impurity model (AIM), whose exa...
Searching for Quantum Effects in the Brain: A Bell-Type Test for Nonclassical Latent Representations in Autoencoders
I. K. Kominis, C. Xie, S. Li +2 more·Jan 15, 2026
Whether neural information processing is entirely classical or involves quantum-mechanical elements remains an open question. Here we propose a model-agnostic, information-theoretic test of nonclassicality that bypasses microscopic assumptions and in...
Pairwise XOR and XNOR Gates in Squeezed Instantaneous Noise Based Logic
Nasir Kenarangui, Laszlo B. Kish, Arthur Powalka·Jan 15, 2026
Instantaneous noise-based logic (INBL) is a novel computing approach that encodes binary information using stochastic processes. It uses 2M orthogonal stochastic reference noises for M noise-bits to construct an exponentially large Hilbert space (hyp...
Electro-optic frequency comb Doppler thermometry
Sean M. Bresler, Erin M. Adkins, Stephen P. Eckel +4 more·Jan 15, 2026
We demonstrate a Doppler thermometer based on direct optical frequency comb spectroscopy of an $^{85}$Rb vapor with a chirped electro-optic frequency comb (EOFC). The direct EOFC Doppler thermometer is accurate to within its approximately 1 K statist...
Scalable high-fidelity and near-deterministic preparation of large photon-number states
Mo Xiong, Jize Han, Chuanzhen Cao +3 more·Jan 15, 2026
The scalable preparation of large photon-number (Fock) states is a long-standing frontier in quantum science, with direct implications for quantum metrology and bosonic quantum information processing. Despite substantial progress at small photon numb...
A Mirror-Descent Algorithm for Computing the Petz-Rényi Capacity of Classical-Quantum Channels
Yu-Hong Lai, Hao-Chung Cheng·Jan 15, 2026
We study the computation of the $α$-Rényi capacity of a classical-quantum (c-q) channel for $α\in(0,1)$. We propose an exponentiated-gradient (mirror descent) iteration that generalizes the Blahut-Arimoto algorithm. Our analysis establishes relative ...
Optimized readout strategies for neutral atom quantum processors
Liang Chen, Wen-Yi Zhu, Zi-Jie Chen +5 more·Jan 15, 2026
Neutral atom quantum processors have emerged as a promising platform for scalable quantum information processing, offering high-fidelity operations and exceptional qubit scalability. A key challenge in realizing practical applications is efficiently ...
H-EFT-VA: An Effective-Field-Theory Variational Ansatz with Provable Barren Plateau Avoidance
Eyad I. B Hamid·Jan 15, 2026
Variational Quantum Algorithms (VQAs) are critically threatened by the Barren Plateau (BP) phenomenon. In this work, we introduce the H-EFT Variational Ansatz (H-EFT-VA), an architecture inspired by Effective Field Theory (EFT). By enforcing a hierar...
Quantum Theory and Unusual Dielectric Functions of Graphene
V. M. Mostepanenko, G. L. Klimchitskaya·Jan 15, 2026
We address the spatially nonlocal dielectric functions of graphene at any frequency derived starting fromthe first principles of thermal quantum field theory using the formalism of the polarization tensor. After a brief review of this formalism, the ...
Analysis and Experimental Demonstration of Amplitude Amplification for Combinatorial Optimization
Daniel Koch, Brian Pardo, Kip Nieman·Jan 15, 2026
Quantum Amplitude Amplification (QAA), the generalization of Grover's algorithm, is capable of yielding optimal solutions to combinatorial optimization problems with high probabilities. In this work we extend the conventional 2-dimensional representa...
Nonlinear quantum Kibble-Zurek ramps in open systems at finite temperature
Johannes N. Kriel, Emma C. King, Michael Kastner·Jan 15, 2026
We analyze quantum systems under a broad class of protocols in which the temperature and a Hamiltonian control parameter are ramped simultaneously and, in general, in a nonlinear fashion toward a quantum critical point. Using an open-system version o...
Erasure conversion for singlet-triplet spin qubits enables high-performance shuttling-based quantum error correction
Adam Siegel, Simon Benjamin·Jan 15, 2026
Fast and high fidelity shuttling of spin qubits has been demonstrated in semiconductor quantum dot devices. Several architectures based on shuttling have been proposed; it has been suggested that singlet-triplet (dual-spin) qubits could be optimal fo...
Localization Landscape in Non-Hermitian and Floquet quantum systems
David Guéry-Odelin, François Impens·Jan 15, 2026
We propose a generalization of the Filoche--Mayboroda localization landscape that extends the theory well beyond the static, elliptic and Hermitian settings while preserving its geometric interpretability. Using the positive operator $H^\dagger H$, w...
Minimal-Energy Optimal Control of Tunable Two-Qubit Gates in Superconducting Platforms Using Continuous Dynamical Decoupling
Adonai Hilário da Silva, Octávio da Motta, Leonardo Kleber Castelano +1 more·Jan 15, 2026
We present a unified scheme for generating high-fidelity entangling gates in superconducting platforms by continuous dynamical decoupling (CDD) combined with variational minimal-energy optimal control. During the CDD stage, we suppress residual coupl...
The SpinPulse library for transpilation and noise-accurate simulation of spin qubit quantum computers
Benoît Vermersch, Oscar Gravier, Nathan Miscopein +6 more·Jan 15, 2026
We introduce SpinPulse, an open-source python package for simulating spin qubit-based quantum computers at the pulse-level. SpinPulse models the specific physics of spin qubits, particularly through the inclusion of classical non-Markovian noise. Thi...
Reduction of thermodynamic uncertainty by a virtual qubit
Yang Li, Fu-Lin Zhang·Jan 15, 2026
The thermodynamic uncertainty relation (TUR) imposes a fundamental constraint between current fluctuations and entropy production, providing a refined formulation of the second law for micro- and nanoscale systems. Quantum violations of the classical...
Unifying Quantum and Classical Dynamics
Abdul Rahaman Shaikh, Tabish Qureshi·Jan 15, 2026
Classical and quantum physics represent two distinct theories; however, quantum physics is regarded as the more fundamental of the two. It is posited that classical mechanics should arise from quantum mechanics under certain limiting conditions. Neve...
Cloud parameter estimation for interacting BEC after time-of-flight
Rasmus Malthe Fiil Andersen, Stine Frederiksen, Laurits Stokholm +4 more·Jan 15, 2026
Experiments on Bose-Einstein condensates at finite temperature typically extract the system parameters, such as temperature, atom number, and condensed fraction from time-of-flight images taken after a free expansion time. This paper systematically e...
Tight bounds on recurrence time in closed quantum systems
Marcin Kotowski, Michał Oszmaniec·Jan 15, 2026
The evolution of an isolated quantum system inevitably exhibits recurrence: the state returns to the vicinity of its initial condition after finite time. Despite its fundamental nature, a rigorous quantitative understanding of recurrence has been lac...