Quantum Brain

Papers

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

Total Papers

27,749

This Month

1,196

Today

0

Research Volume

13,047 papers in 12 months (-2% vs prior quarter)

Research Focus Areas

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

Qubit Platforms

Hardware platform mentions in abstractsPhotonic leads

6,154 papers found

RedCarD: A Quantum Assisted Algorithm for Fixed-Depth Unitary Synthesis via Cartan Decomposition

Omar Alsheikh, Efekan Kökcü, Bojko N. Bakalov +1 more·Dec 5, 2025

A critical step in developing circuits for quantum simulation is to synthesize a desired unitary operator using the circuit building blocks. Studying unitaries and their generators from the Lie algebraic perspective has given rise to several algorith...

Quantum Physics

Simulating non-trivial incompressible flows with a quantum lattice Boltzmann algorithm

David Jennings, Kamil Korzekwa, Matteo Lostaglio +4 more·Dec 5, 2025

Quantum algorithms have been identified as a potential means to accelerate computational fluid dynamics (CFD) simulations, with the lattice Boltzmann method (LBM) being a promising candidate for realizing quantum speedups. Here, we extend the recent ...

physics.flu-dynQuantum Physics

Heisenberg-Weyl bosonic phase spaces: emergence, constraints and quantum informational resources

Eloi Descamps, Astghik Saharyan, Arne Keller +1 more·Dec 5, 2025

Phase space quasi-probability functions provide powerful representations of quantum states and operators, as well as criteria for assessing quantum computational resources. In discrete, odd-dimensional systems (qudits), protocols involving only non-n...

Quantum Physics

Shadow Tomography Against Adversaries

Maryam Aliakbarpour, Vladimir Braverman, Nai-Hui Chia +4 more·Dec 5, 2025

We study single-copy shadow tomography in the adversarial robust setting, where the goal is to learn the expectation values of $M$ observables $O_1, \ldots, O_M$ with $\varepsilon$ accuracy, but $γ$-fraction of the outcomes can be arbitrarily corrupt...

Quantum PhysicsComplexity

Bridging quantum and classical computing for partial differential equations through multifidelity machine learning

Bruno Jacob, Amanda A. Howard, Panos Stinis·Dec 4, 2025

Quantum algorithms for partial differential equations (PDEs) face severe practical constraints on near-term hardware: limited qubit counts restrict spatial resolution to coarse grids, while circuit depth limitations prevent accurate long-time integra...

cs.LGQuantum Physics

Analog quantum simulation of the Lipkin-Meshkov-Glick model in a transmon qudit

Elizabeth Champion, Annie Schwartz, Muhammad A. Ijaz +4 more·Dec 4, 2025

The simulation of large-scale quantum systems is one of the most sought-after applications of quantum computers. Of particular interest for near-term demonstrations of quantum computational advantage are analog quantum simulations, which employ analo...

Quantum Physics

A Framework for Quantum Simulations of Energy-Loss and Hadronization in Non-Abelian Gauge Theories: SU(2) Lattice Gauge Theory in 1+1D

Zhiyao Li, Marc Illa, Martin J. Savage·Dec 4, 2025

Simulations of energy loss and hadronization are essential for understanding a range of phenomena in non-equilibrium strongly-interacting matter. We establish a framework for performing such simulations on a quantum computer and apply it to a heavy q...

Quantum Physicshep-lathep-phnucl-th

Multimode equilibrium approximations in light-matter systems from weak to strong coupling

Davis M. Welakuh, Vasil Rokaj, Michael Ruggenthaler +1 more·Dec 4, 2025

In this work, we detail different approaches to treat multi-mode photonic environments within non-relativistic quantum electrodynamics in the long-wavelength approximation efficiently. Specifically we show that for equilibrium properties of coupled l...

Quantum Physics

Investigating a Quantum-Inspired Method for Quantum Dynamics

Bo Xiao, Benedikt Kloss, E. Miles Stoudenmire·Dec 4, 2025

Building on recent advances in quantum algorithms which measure and reuse qubits and in efficient classical simulation leveraging projective measurements, we extend these frameworks to real-time dynamics of quantum many-body systems undergoing discre...

Quantum Physicscond-mat.str-el

Pump Free Microwave-Optical Quantum Transduction

Fangxin Li, Jaesung Heo, Zhaoyou Wang +3 more·Dec 4, 2025

Distributed quantum computing involves superconducting computation nodes operating at microwave frequencies, which are connected by long-distance transmission lines that transmit photons at optical frequencies. Quantum transduction, which coherently ...

Quantum Physics

Deadline-Aware Scheduling of Distributed Quantum Circuits in Near-Term Quantum Cloud

Nour Dehaini, Christia Chahoud, Mahdi Chehimi·Dec 4, 2025

Distributed quantum computing (DQC) enables scalable quantum computations by distributing large quantum circuits on multiple quantum processing units (QPUs) in the quantum cloud. In DQC, after partitioning quantum circuits, they must be scheduled and...

Quantum Physicscs.NI

Convergence of sample-based quantum diagonalization on a variable-length cuprate chain

L. Andrew Wray, Cheng-Ju Lin, Vincent Su +1 more·Dec 4, 2025

Sample-based quantum diagonalization (SQD) is an algorithm for hybrid quantum-classical molecular simulation that has been of broad interest for application with noisy intermediate scale quantum (NISQ) devices. However, SQD does not always converge o...

Quantum Physicscond-mat.otherphysics.chem-phphysics.comp-ph

Hybrid VQE-CVQE algorithm using diabatic state preparation

John P. T. Stenger, C. Stephen Hellberg, Daniel Gunlycke·Dec 4, 2025

We propose a hybrid variational quantum algorithm that has variational parameters used by both the quantum circuit and the subsequent classical optimization. Similar to the Variational Quantum Eigensolver (VQE), this algorithm applies a parameterized...

Quantum Physics

Quantum-Inspired Optimization through Qudit-Based Imaginary Time Evolution

Erik M. Åsgrim, Ahsan Javed Awan·Dec 4, 2025

Imaginary-time evolution has been shown to be a promising framework for tackling combinatorial optimization problems on quantum hardware. In this work, we propose a classical quantum-inspired strategy for solving combinatorial optimization problems w...

Quantum PhysicsEmerging Tech

Collective cluster nucleation dynamics in quantum magnets

Philip Osterholz, Fabio Bensch, Shuanghong Tang +4 more·Dec 4, 2025

Strongly interacting many-body systems exhibit collective properties that emerge from complex correlations among microscopic degrees of freedom. These cooperative phenomena govern the non-equilibrium response of quantum systems, with relevance rangin...

cond-mat.quant-gasQuantum Physics

Supramolecular approach-based intermolecular interaction energy calculations using quantum phase estimation algorithm

Yuhei Tachi, Akihiko Arakawa, Taisei Osawa +2 more·Dec 4, 2025

Accurate computation of non-covalent, intermolecular interaction energies is important to understand various chemical phenomena, and quantum computers are anticipated to accelerate it. Although the state-of-the-art quantum computers are still noisy a...

Quantum Physicsphysics.chem-ph

Quantum-Accelerated Deep Reinforcement Learning for Frequency Regulation Enhancement

Amin Masoumi, M. Korkali·Dec 4, 2025

In modern power systems, frequency regulation is a fundamental prerequisite for ensuring system reliability and assessing the robustness of expansion projects. Conventional feedback control schemes, however, exhibit limited accuracy under varying ope...

EngineeringComputer Science

Quantum Chemistry Simulation of Dibenzothiophene for Asphalt Aging Analysis

Om Tailor·Dec 3, 2025

This paper presents the execution and analysis of a comprehensive quantum chemistry pipeline for gathering actionable insight into asphalt aging mechanisms through the study of dibenzothiophene (DBT), a key sulfur-containing compound in asphalt binde...

physics.chem-phEmerging Tech

Maestro: Intelligent Execution for Quantum Circuit Simulation

Oriol Bertomeu, Hamzah Ghayas, Adrian Roman +1 more·Dec 3, 2025

Quantum circuit simulation remains essential for developing and validating quantum algorithms, especially as current quantum hardware is limited in scale and quality. However, the growing diversity of simulation methods and software tools creates a h...

Quantum Physicscs.MScs.SE

Simulation of a Heterogeneous Quantum Network

Hayden Miller, Caitao Zhan, Michael Bishof +4 more·Dec 3, 2025

Quantum networks are expected to be heterogeneous systems, combining distinct qubit platforms, photon wavelengths, and device timescales to achieve scalable, multiuser connectivity. Building and iterating on such systems is costly and slow, which mot...

Quantum Physicscs.NI
Quantum Intelligence

Ask about quantum research, companies, or market developments.