Quantum Brain

Papers

Live trends in quantum computing research, updated daily from arXiv.

Total Papers

27,548

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1,041

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Research Volume

12,910 papers in 12 months (-5% vs prior quarter)

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Papers by research theme (12 months). Hover for details.

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6,129 papers found

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...

Quantum Physics

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...

Mesoscale Physicscond-mat.dis-nncond-mat.str-elQuantum Physics

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...

cond-mat.str-elQuantum Physics

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...

Quantum Physicscond-mat.mtrl-sciphysics.comp-ph

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...

Quantum Physics

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...

Quantum Physicsphysics.optics

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...

Quantum Physics

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...

Quantum Physics

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...

Quantum Physics

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. ...

cs.NIEmerging Tech

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...

Quantum Physics

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...

Quantum Physics

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...

Quantum Physics

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...

Quantum Physics

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...

Quantum Physics

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 ...

Quantum PhysicsMesoscale PhysicsMathematical Physics

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...

Quantum Physics

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...

cond-mat.quant-gashep-latQuantum Physics

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...

Quantum Physicscond-mat.quant-gascond-mat.stat-mechcond-mat.str-el

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...

Quantum Physicshep-lathep-phnucl-th
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