Quantum Brain

Papers

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

Total Papers

27,548

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Research Volume

12,932 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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2,459 papers found

Is the matrix completion of reduced density matrices unique?

Gustavo E. Massaccesi, Ofelia B. Oña, Luis Lain +4 more·Mar 13, 2026

Reduced density matrices are central to describing observables in many-body quantum systems. In electronic structure theory, the two-particle reduced density matrix (2-RDM) suffices to determine the energy and other key properties. Recent work has us...

Quantum Physicsphysics.chem-ph

Auger Spectroscopy via Generative Quantum Eigensolver: A Quantum Approach to Molecular Excitations

Kimberlee Keithley, Shunsuke Yamamoto, Ryota Kenmoku +16 more·Mar 13, 2026

Auger electron spectroscopy, a way of characterizing electronic structure through core-level decay processes, is widely used in materials characterization; however direct calculation from molecular geometry requires accurate treatment of many excited...

Quantum Physics

Deep-Learning-Designed AlGaAs Interface Linking Trapped Ions to Telecom Quantum Networks

I. P. De Simeone, G. Maltese, V. Cambier +5 more·Mar 13, 2026

The realization of a scalable quantum internet requires efficient light-matter interfaces that map stationary qubits onto photonic carriers for long-distance transmission. A central challenge is the generation of entangled photons simultaneously comp...

Quantum Physics

Reaction-Level Consistency within the Variational Quantum Eigensolver: Homodesmotic Ring Strain Energies of Cyclic Hydrocarbons

L. Roy, M. Sarkar, M. Tewari +2 more·Mar 13, 2026

Simulation of chemical reactions on quantum computing platforms using quantum classical hybrid algorithms such as the Variational Quantum Eigensolver (VQE) is challenged by the need for a reaction consistent treatment of electron correlation in react...

physics.chem-phQuantum Physics

Advanced Quantum Annealing for the Bi-Objective Traveling Thief Problem: An $\varepsilon$-Constraint-based Approach

Nguyen Hoang Viet, Nguyen Xuan Tung, Trinh Van Chien +1 more·Mar 13, 2026

This paper addresses the Bi-Objective Traveling Thief Problem (BI-TTP), a challenging multi-objective optimization problem that requires the simultaneous optimization of travel cost and item profit. Conventional methods for the BI-TTP often face seve...

Quantum Physicscs.IT

Embedded Quantum Machine Learning in Embedded Systems: Feasibility, Hybrid Architectures, and Quantum Co-Processors

Somdip Dey, Syed Muhammad Raza·Mar 13, 2026

Embedded quantum machine learning (EQML) seeks to bring quantum machine learning (QML) capabilities to resource-constrained edge platforms such as IoT nodes, wearables, drones, and cyber-physical controllers. In 2026, EQML is technically feasible onl...

Computer Science

Hybrid Integration of Quantum Dot Single Photon Sources with Lithium Tantalate Photonics for On Chip Routing

Kaili Xiong, Defeng Shan, Xueshi Li +11 more·Mar 13, 2026

A promising pathway towards scalable quantum photonic processors involves the simultaneous integration of deterministic single-photon sources, low-loss photonic circuitry, and fast reconfigurability. Thin-film lithium tantalate on insulator (LTOI) of...

Physics

Hybrid Analog-Digital Simulation of the Abelian Higgs model

Muhammad Asaduzzaman, Rayleigh W. Parker, Noah Goss +8 more·Mar 12, 2026

To investigate gauge theories with near-term quantum computers warrants exploration of nontraditional quantum simulators to find resource-efficient simulation protocols and ultimately access exotic features of different field theories, including unex...

Quantum Physicshep-lat

Engineering near-unitary one-axis twisting evolution via a driven Tavis-Cummings model

Jinfeng Liu, Yan Mu, Lili Song +2 more·Mar 12, 2026

One-axis twisting (OAT) interaction is a pivotal resource for manipulating quantum states of atomic ensembles, enabling spin squeezing, atomic-cat-state generation, and weak-phase amplification. Current implementations of OAT dynamics predominantly r...

Quantum Physics

Hybrid Analog Teleportation-Direct Transmission in Noisy Bosonic Channels

Uesli Alushi, Simone Felicetti, Roberto Di Candia·Mar 12, 2026

Quantum teleportation uses a shared entangled resource, local operations, and a digitally error-corrected classical channel to transfer quantum states between distant parties. We introduce a hybrid teleportation-direct transmission protocol for state...

Quantum PhysicsMesoscale Physics

QuaNTUM: A Modular Quantum Communication Testbed for Scalable Fiber and Satellite Integration

Julien Chénedé, Tjorben Matthes, Josefine Krause +2 more·Mar 11, 2026

Secure communication is essential for modern society, from financial transactions to critical infrastructure. As classical encryption faces threats from advancing computational power, quantum communication provides a fundamentally secure alternative ...

Quantum Physicsphysics.app-phphysics.optics

Focusing Surface-Acoustic-Wave Resonators on Thin-Film Lithium Niobate with Transverse-Mode Suppression

Ryo Sasaki, Ryusuke Hisatomi, Rekishu Yamazaki +3 more·Mar 11, 2026

Surface-acoustic-wave (SAW) resonators are a promising platform for constructing hybrid quantum systems, where confined acoustic waves enable strong interaction with various physical systems. Focusing SAW resonators, reducing mode volume while suppre...

Quantum Physicsphysics.optics

Unitary imaginary time evolution and ground state preparation using multi-copy protocols

Tal Schwartzman, Torsten V. Zache, Hannes Pichler +1 more·Mar 11, 2026

Efficient low-energy state preparation is a key objective in quantum computation and quantum simulation. Quantum imaginary-time evolution replaces real-time dynamics with imaginary-time dynamics, exponentially suppressing higher-energy eigenstates. W...

Quantum Physicshep-thAtomic Physics

Reference Architecture of a Quantum-Centric Supercomputer

Seetharami Seelam, Jerry M. Chow, Antonio Córcoles +10 more·Mar 11, 2026

Quantum computers have demonstrated utility in simulating quantum systems beyond brute-force classical approaches. As the community builds on these demonstrations to explore using quantum computing for applied research, algorithms and workflows have ...

Emerging Techcs.ARcs.DCeess.SY

Hybridlane: A Software Development Kit for Hybrid Continuous-Discrete Variable Quantum Computing

Jim Furches, Timothy J. Stavenger, Carlos Ortiz Marrero·Mar 11, 2026

Hybrid quantum computing systems that combine discrete-variable qubits with continuous-variable qumodes offer promising advantages for quantum simulation, error correction, and sensing applications. However, existing quantum software frameworks lack ...

Quantum PhysicsEmerging Tech

Universal purification dynamics in real non-unitary quantum processes

Federico Gerbino, Donghoon Kim, Guido Giachetti +2 more·Mar 11, 2026

We study purification dynamics in monitored quantum processes governed by ensembles of quantum circuits in different random-matrix symmetry classes. We analyze the universal aspects that emerge away from the measurement induced phase transition and i...

Quantum Physicscond-mat.stat-mech

Hybrid Photonic Quantum Reservoir Computing for High-Dimensional Financial Surface Prediction

Fyodor Amanov, Azamkhon Azamov·Mar 11, 2026

We propose a hybrid photonic quantum reservoir computing (QRC) framework for swaption surface prediction. The pipeline compresses 224-dimensional surfaces to a 20-dimensional latent space via a sparse denoising autoencoder, extracts 1,215 Fock-basis ...

Quantum Physics

Optical quantum teleportation with known amplitude distorting factors of teleported qubits

Mikhail S. Podoshvedov, Sergey A. Podoshvedov·Mar 11, 2026

We develop a quantum teleportation protocol of an unknown optical single rail qubit using a hybrid quantum channel composed of continuous variable (CV) states of certain parity. The quantum channel is characterized by two parameters: a squeezing para...

Quantum Physics

Entanglement distribution among distinct mechanical nodes in a quantum network

Zhi-Yuan Fan, Liu-Yong Cheng·Mar 11, 2026

We propose two schemes to achieve remote entanglement distribution between two mechanical nodes with a significant frequency mismatch, based on optomechanical systems. The first scheme utilizes the physical mechanism to redistribute the quantum entan...

Quantum Physics

Quantum entanglement provides a competitive advantage in adversarial games

Peiyong Wang, Kieran Hymas, James Quach·Mar 11, 2026

Whether uniquely quantum resources confer advantages in fully classical, competitive environments remains an open question. Competitive zero-sum reinforcement learning is particularly challenging, as success requires modelling dynamic interactions be...

Quantum PhysicsAIcs.LG
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