Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Scalable Suppression of XY Crosstalk by Pulse-Level Control in Superconducting Quantum Processors
Hui-Hang Chen, Chiao-Hsuan Wang·Jan 8, 2026
As superconducting quantum processors continue to scale, high-performance quantum control becomes increasingly critical. In densely integrated architectures, unwanted interactions between nearby qubits give rise to crosstalk errors that limit operati...
Interacting electrons in silicon quantum interconnects
Anantha S. Rao, Christopher David White, Sean R. Muleady +2 more·Jan 8, 2026
Coherent interconnects between gate-defined silicon quantum processing units are essential for scalable quantum computation and long-range entanglement. We argue that one-dimensional electron channels formed in the silicon quantum well of a Si/SiGe h...
Chiral Graviton Modes in Fermionic Fractional Chern Insulators
Min Long, Zeno Bacciconi, Hongyu Lu +3 more·Jan 8, 2026
Chiral graviton modes are hallmark collective excitations of Fractional Quantum Hall (FQH) liquids. However, their existence on the lattice, where continuum symmetries that protect them from decay are lost, is still an open and urgent question, espec...
Quantum Elastic Network Models and their Application to Graphene
Ioannis Kolotouros, Adithya Sireesh, Stuart Ferguson +3 more·Jan 8, 2026
Molecular dynamics simulations are a central computational methodology in materials design for relating atomic composition to mechanical properties. However, simulating materials with atomic-level resolution on a macroscopic scale is infeasible on cu...
Simulation of noisy quantum circuits using frame representations
Janek Denzler, Jose Carrasco, Jens Eisert +1 more·Jan 8, 2026
One of the core research questions in the theory of quantum computing is to find out to what precise extent the classical simulation of a noisy quantum circuits is possible and where potential quantum advantages can set in. In this work, we introduce...
Scalable Generation of Macroscopic Fock States Exceeding 10,000 Photons
Ming Li, Weizhou Cai, Ziyue Hua +7 more·Jan 8, 2026
The scalable preparation of bosonic quantum states with macroscopic excitations poses a fundamental challenge in quantum technologies, limited by control complexity and photon-loss rates that severely constrain prior theoretical and experimental effo...
Unitary fault-tolerant encoding of Pauli states in surface codes
Luis Colmenarez, Remmy Zen, Jan Olle +2 more·Jan 8, 2026
In fault-tolerant quantum computation, the preparation of logical states is a ubiquitous subroutine, yet significant challenges persist even for the simplest states required. In the present work, we present a unitary, scalable, distance-preserving en...
Preconditioned Multivariate Quantum Solution Extraction
Gumaro Rendon, Stepan Smid·Jan 8, 2026
Numerically solving partial differential equations is a ubiquitous computational task with broad applications in many fields of science. Quantum computers can potentially provide high-degree polynomial speed-ups for solving PDEs, however many algorit...
Landau Zener Interaction Enhanced Quantum Sensing in Spin Defects of Hexagonal Boron Nitride
Mohammad Abdullah Sadi, Tiamike Dudley, Luca Basso +6 more·Jan 8, 2026
Negatively charged boron vacancies (V$_{\text{B}}^{-}$) in hexagonal boron nitride (hBN) comprise a promising quantum sensing platform, optically addressable at room temperature and transferrable onto samples. However, broad hyperfine-split spin tran...
5G NR Non-Terrestrial Networks: From Early Results to the Road Ahead
Mattia Figaro, Francesco Rossato, Marco Giordani +7 more·Jan 8, 2026
This paper overviews the 3GPP 5G NR-NTN standard, detailing the evolution from Rel. 18 to 19 and innovations for Rel. 20. Using realistic ns-3 simulations validated against 3GPP calibration data, we evaluate various satellite network configurations. ...
Distinguishing Coherent and Incoherent Errors in Multi-Round Time-Reversed Dynamics via Scramblons
Zeyu Liu, Pengfei Zhang·Jan 8, 2026
Despite the rapid development of quantum science and technology, errors are inevitable and play a crucial role in quantum simulation and quantum computation. In quantum chaotic systems, coherent errors arising from imperfect Hamiltonian control and i...
Fast thermal state preparation beyond native interactions
Alexander van Lomwel, Paul M. Schindler, Modesto Orozco-Ruiz +3 more·Jan 8, 2026
While questions on quantum simulation of ground state physics are mostly focussed on the realization of effective interactions, most work on quantum simulation of thermal physics explores the realization of dynamics towards a thermal mixed state unde...
Hardy nonlocality for entangled pairs in a four-particle system
Duc Manh Doan, Hung Q. Nguyen·Jan 8, 2026
Nonlocality can be studied through different approaches, such as Bell's inequalities, and it can be found in numerous quantum states, including GHZ states or graph states. Hardy's paradox, or Hardy-type nonlocality, provides a way to investigate nonl...
Solving nonlinear differential equations on noisy $156$-qubit quantum computers
Karla Baumann, Youcef Modheb, Roman Randrianarisoa +3 more·Jan 7, 2026
In this paper, we report on the resolution of nonlinear differential equations using IBM's quantum platform. More specifically, we demonstrate that the hybrid classical-quantum algorithm H-DES successfully solves a one-dimensional material deformatio...
Implementation of Tensor Network Simulation TN-Sim under NWQ-Sim
Aaron C. Hoyt, Jonathan S. Bersson, Sean Garner +2 more·Jan 7, 2026
Large-scale tensor network simulations are crucial for developing robust complexity-theoretic bounds on classical quantum simulation, enabling circuit cutting approaches, and optimizing circuit compilation, all of which aid efficient quantum computat...
Exact Multimode Quantization of Superconducting Circuits via Boundary Admittance and Continued Fractions
Mustafa Bakr, Robin Wopalenski·Jan 7, 2026
Accurate extraction of linearized quantum circuit models from electromagnetic simulations is essential for the design of superconducting circuits. We present a quantization framework based on the driving-point admittance $Y_{\mathrm{in}}(s)$ seen by ...
Thermodynamic significance of QUBO encoding on quantum annealers
Emery Doucet, Zakaria Mzaouali, Reece Robertson +3 more·Jan 7, 2026
Quadratic unconstrained binary optimization (QUBO) is the standard interface to quantum annealers, yet a single constrained task admits many QUBO encodings whose penalty choices reshape the energy landscape experienced by hardware. We study a Job Sho...
Scalable cold-atom quantum simulator of a $3+1$D U$(1)$ lattice gauge theory with dynamical matter
Simone Orlando, Guo-Xian Su, Bing Yang +1 more·Jan 7, 2026
The stated overarching goal of the highly active field of quantum simulation of high-energy physics (HEP) is to achieve the capability to study \textit{ab-initio} real-time microscopic dynamics of $3+1$D quantum chromodynamics (QCD). However, existin...
Microscopic Dynamics of False Vacuum Decay in the $2+1$D Quantum Ising Model
Umberto Borla, Achilleas Lazarides, Christian Groß +1 more·Jan 7, 2026
False vacuum decay, which is understood to happen through bubble nucleation, is a prominent phenomenon relevant to elementary particle physics and early-universe cosmology. Understanding its microscopic dynamics in higher spatial dimensions is curren...
Scattering phase shift in quantum mechanics on quantum computers
Peng Guo, Paul LeVan, Frank X. Lee +1 more·Jan 7, 2026
We investigate the feasibility of extracting infinite volume scattering phase shift on quantum computers in a simple one-dimensional quantum mechanical model, using the formalism established in Ref.~\cite{Guo:2023ecc} that relates the integrated corr...