Quantum Brain

Papers

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

Total Papers

27,228

This Month

780

Today

0

Research Volume

12,688 papers in 12 months (-11% vs prior quarter)

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

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6,077 papers found

The Dynamics of Attention across Automated and Manual Driving Modes: A Driving Simulation Study

Yuan Cai, Mustafa Demir, Farzan Sasangohar +1 more·Feb 4, 2026

This study aims to explore the dynamics of driver attention to various zones, including the road, the central mirror, the embedded Human-Machine Interface (HMI), and the speedometer, across different driving modes in AVs. The integration of autonomou...

Emerging Techstat.APstat.COstat.OT

A computational account of dreaming: learning and memory consolidation

Qi Zhang·Feb 4, 2026

A number of studies have concluded that dreaming is mostly caused by randomly arriving internal signals because "dream contents are random impulses", and argued that dream sleep is unlikely to play an important part in our intellectual capacity. On t...

q-bio.NCAIEmerging Tech

Approximate simulation of complex quantum circuits using sparse tensors

Benjamin N. Miller, Peter K. Elgee, Jason R. Pruitt +1 more·Feb 3, 2026

The study of quantum circuit simulation using classical computers is a key research topic that helps define the boundary of verifiable quantum advantage, solve quantum many-body problems, and inform development of quantum hardware and software. Tenso...

Quantum Physics

Universal Characterization of Quantum Vacuum Measurement Engines

Robert Czupryniak, Bibek Bhandari, Paolo Andrea Erdman +1 more·Feb 3, 2026

Quantum measurements can inject energy into quantum systems, enabling engines whose operation is powered entirely by measurements. We develop a general theory of quantum vacuum measurement engines by introducing the quantum vacuum bending function (Q...

Quantum Physics

Optimal Effective Hamiltonian for Quantum Computing and Simulation

Hao-Yu Guan, Xiao-Long Zhu, Yu-Hang Dang +1 more·Feb 3, 2026

The effective Hamiltonian serves as the conceptual pivot of quantum engineering, transforming physical complexity into programmable logic; yet, its construction remains compromised by the mathematical non-uniqueness of block diagonalization, which in...

Quantum Physics

An Evaluation of the Remote CX Protocol under Noise in Distributed Quantum Computing

Leo Sünkel, Michael Kölle, Tobias Rohe +1 more·Feb 3, 2026

Quantum computers connected through classical and quantum communication channels can be combined to function as a single unit to run large quantum circuits that each device is unable to execute on their own. The distributed quantum computing paradigm...

Quantum Physics

Evaluating Quantum Wire Cutting for QAOA: Performance Benchmarks in Ideal and Noisy Environments

Michel Meulen, Niels M. P. Neumann, Jasper Verbree·Feb 3, 2026

Current quantum computers suffer from a limited number of qubits and high error rates, limiting practical applicability. Different techniques exist to mitigate these effects and run larger algorithms. In this work, we analyze one of these techniques ...

Quantum Physics

Even More Efficient Soft-Output Decoding with Extra-Cluster Growth and Early Stopping

Kaito Kishi, Riki Toshio, Jun Fujisaki +3 more·Feb 3, 2026

In fault-tolerant quantum computing, soft outputs from real-time decoders play a crucial role in improving decoding accuracy, post-selecting magic states, and accelerating lattice surgery. A recent paper by Meister et al. [arXiv:2405.07433 (2024)] pr...

Quantum Physics

Tuning interactions between static-field-shielded polar molecules with microwaves

Christopher J. Ho, Joy Dutta, Bijit Mukherjee +2 more·Feb 3, 2026

The ability to tune interparticle interactions is one of the main advantages of using ultracold quantum gases for quantum simulation of many-body physics. Current experiments with ultracold polar molecules employ shielding with microwave or static el...

cond-mat.quant-gasAtomic PhysicsQuantum Physics

Resource-efficient quantum simulation of transport phenomena via Hamiltonian embedding

Joseph Li, Gengzhi Yang, Jiaqi Leng +1 more·Feb 3, 2026

Transport phenomena play a key role in a variety of application domains, and efficient simulation of these dynamics remains an outstanding challenge. While quantum computers offer potential for significant speedups, existing algorithms either lack ri...

Quantum Physics

Device variability of Josephson junctions induced by interface roughness

Yu Zhu, Félix Beaudoin, Hong Guo·Feb 3, 2026

As quantum processors scale to large qubit numbers, device-to-device variability emerges as a critical challenge. Superconducting qubits are commonly realized using Al/AlO$_{\text{x}}$/Al Josephson junctions operating in the tunneling regime, where e...

Quantum Physics

Multi-Player, Multi-Strategy Quantum Game Model for Interaction-Aware Decision-Making in Automated Driving

Karim Essalmi, Fernando Garrido, F. Nashashibi·Feb 3, 2026

Although significant progress has been made in decision-making for automated driving, challenges remain for deployment in the real world. One challenge lies in addressing interaction-awareness. Most existing approaches oversimplify interactions betwe...

Computer Science

Dynamic Simulations of Strongly Coupled Spin Ensembles for Inferring Nature of Electronic Correlations from Nuclear Magnetic Resonance

Charles Snider, Stephen Carr, D. E. Feldman +2 more·Feb 2, 2026

We develop an efficient package for the simulation of nuclear magnetic resonance spin echo experiments to study the effects of strong electronic spin correlations on the dynamics of the nuclear spin ensemble. A mean-field model is used to study corre...

cond-mat.str-elQuantum Physics

Integration of Variational Quantum Algorithms into Atomistic Simulation Workflows

Wilke Dononelli·Feb 2, 2026

In this work, we present the integration of Qiskit Nature's quantum chemistry solvers into the Atomic Simulation Environment (ASE), enabling hybrid quantum-classical workflows for force-driven atomistic simulations. This coupling allows the use of th...

Quantum PhysicsMathematical Physics

Approaching the Thermodynamic Limit with Neural-Network Quantum States

Luciano Loris Viteritti, Riccardo Rende, Subir Sachdev +1 more·Feb 2, 2026

Accessing the thermodynamic-limit properties of strongly correlated quantum matter requires simulations on very large lattices, a regime that remains challenging for numerical methods, especially in frustrated two-dimensional systems. We introduce th...

cond-mat.str-elcond-mat.dis-nnQuantum Physics

Nonlinear light cone spreading of correlations in a triangular quantum magnet: a hard quantum simulation target

A. Scheie, J. Willsher, E. A. Ghioldi +6 more·Feb 2, 2026

Dynamical correlations of quantum many-body systems are typically analyzed in the momentum space and frequency basis. However, quantum simulators operate more naturally in real space, real time settings. Here we analyze the real-space time-dependent ...

cond-mat.str-elQuantum Physics

Large Nc Truncations for SU(Nc) Lattice Yang-Mills Theory with Fermions

Neel S. Modi, Anthony N. Ciavarella, Jad C. Halimeh +1 more·Feb 2, 2026

Quantum simulations of quantum chromodynamics (QCD) require a representation of gauge fields and fermions on the finitely many degrees of freedom available on a quantum computer. We introduce a truncation of lattice QCD coupled to staggered fermions ...

hep-lathep-phQuantum Physics

Observing weakly broken conservation laws in a dipolar Rydberg quantum spin chain

Cheng Chen, Luca Capizzi, Alice Marché +6 more·Feb 2, 2026

Integrable quantum many-body systems host families of extensive conservation laws, some of which are fragile: even infinitesimal perturbations can qualitatively alter their dynamical constraints. Here we show that this fragility leaves a clear experi...

cond-mat.quant-gascond-mat.stat-mechQuantum Physics

Microscopic simulations of the coupled dynamics of cavity photons, excitons, and biexcitons

Hendrik Rose, Stefan Schumacher, Torsten Meier·Feb 2, 2026

The coherent interaction between quantum light and material excitations in semiconductor nanostructures is investigated using a fully quantized microscopic approach that incorporates many-body Coulomb correlations. The simulations demonstrate that th...

Mesoscale PhysicsQuantum Physics

Scalable Quantum-Classical DFT Embedding for NISQ Molecular Simulation

Namrata Manglani, Samrit Kumar Maity, Ranjit Thapa +1 more·Feb 2, 2026

Scalable quantum-classical embedding is essential for chemically meaningful simulations on near-term NISQ hardware. Using QDFT, we show systematic recovery of correlation energy relative to the DFT baseline, benchmarked against CCSD in a fixed six-or...

Quantum Physics
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