Quantum Brain

Papers

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

Total Papers

27,086

This Month

659

Today

0

Research Volume

12,598 papers in 12 months (-14% vs prior quarter)

Research Focus Areas

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

Qubit Platforms

Hardware platform mentions in abstractsPhotonic leads

1,703 papers found

Integrated emitters with CMOS-compatible tuning for large scale quantum SiN photonic circuits

J. Witte, A. Shadmani, Zhe Liu +10 more·Nov 26, 2025

Next-generation scalable quantum photonic technologies operating at the single photon level rely on bringing together optimized quantum building blocks with minimal optical coupling losses. Achieving this necessitates the heterogeneous integration of...

Physics

Many-Body Entanglement in Solid-State Emitters

Emma Daggett, Christian M. Lange, Bennet Windt +23 more·Nov 25, 2025

The preparation and control of quantum states lie at the heart of quantum information science (QIS). Recent advances in solid-state quantum emitters (QEs) and nanophotonics have transformed the landscape of quantum photonic technologies, enabling sca...

Quantum Physics

Nonreciprocal quantum information processing with superconducting diodes in circuit quantum electrodynamics

Nicolas Dirnegger, Prineha Narang, Arpit Arora·Nov 25, 2025

Introducing new components and functionalities into quantum devices is critical in advancing state-of-the-art hardware. Here, we propose superconducting diodes (SDs) as a coherent nonreciprocal element in circuit quantum electrodynamics (cQED) archit...

Quantum Physics

Routing in Non-Isotonic Quantum Networks

Maxwell Tang, Garrett Hinkley, Kenneth Goodenough +2 more·Nov 25, 2025

Optimal routing in quantum-repeater networks requires finding the best path that connects a pair of end nodes. Most previous work on routing in quantum networks assumes utility functions that are isotonic, meaning that the ordering of two paths does ...

Quantum Physics

Plug-n-Play Three Pulse Twin Field QKD

Anagha Gayathri, Aryan Bhardwaj, Nilesh Sharma +3 more·Nov 25, 2025

We present the experimental implementation of a three-time-bin phase-encoded Twin-Field Quantum Key Distribution (TF-QKD) protocol using a Sagnac-based star-topology plug-and-play architecture. The proposed encoding method leverages the relative phas...

Quantum Physics

Generation of Ultrahigh Anomalous Hall Conductivities via Optimally Prepared Topological Floquet States

Andrew Cupo, Hai-Ping Cheng, Chandrasekhar Ramanathan +1 more·Nov 25, 2025

Ultrafast quantum matter experiments have validated predictions from Floquet theory - notably, the dynamical modification of the electronic band structure and the light-induced anomalous Hall effect, via monotonic modulation of the driving amplitude....

Mesoscale PhysicsQuantum Physics

Entropy Flow and Exceptional-Point Structure in Two-Mode Squeezed-Bath Dynamics

Eric R. Bittner·Nov 24, 2025

Squeezed reservoirs provide a powerful means of engineering nonclassical noise and controlling irreversible dynamics in open quantum systems. Here we develop a comprehensive analysis of two coupled harmonic oscillators driven by independent squeezed ...

Quantum Physicscond-mat.stat-mech

Modelling and experimental verification of photoelectrical response of NV diamond spin centres

Josef Soucek, Michael Petrov, Michal Gulka +2 more·Nov 24, 2025

We report on a mathematical model of the photoelectric response of NV colour centres in diamond, that can be employed for sensing and quantum science information applications. Although the model applies to NV centre in diamond, it can be applied with...

Quantum Physics

Attosecond-resolved quantum fluctuations of light and matter

Matan Even Tzur, Chen Mor, Noa Yaffe +10 more·Nov 23, 2025

Until recently, attosecond optical spectroscopy and quantum optics evolved along non-overlapping directions. In attosecond science, attosecond pulses have been regarded as classical waves, applied to probe electron dynamics on their natural time scal...

physics.opticsQuantum Physics

Entanglement Generation via Hamiltonian Dynamics Having Limited Resources

Moein Naseri·Nov 22, 2025

We investigate the fundamental limits of entanglement generation under bipartite Hamiltonian dynamics when only finite physical resources-specifically, bounded energy variance-are available. Using the relative entropy of entanglement, we derive a clo...

Quantum Physics

Optical Entanglement Facilitated by Opto-Mechanical Cooling

Alexandr V. Karpenko, Andrey B. Matsko, Sergey P. Vyatchanin·Nov 21, 2025

Optomechanical generation of entangled optical beams is usually hindered by thermal noise. We present a theoretical study of low frequency entanglement generation between two optical harmonics emitted from a cavity optomechanical system operating in ...

Quantum Physicsphysics.optics

Quantum-Embedded Dynamic Security Control using Hybrid Deep Reinforcement Learning

Amin Masoumi, M. Korkali·Nov 21, 2025

Dynamic security control (DSC) is considered a pivotal step for the future power grid, which is increasingly penetrated by inverter-based resources. However, the efficiency of such practices, whether governed by automatic generation control or virtua...

Computer ScienceEngineering

White Paper on Quantum Internet Computer Science Research Challenges

Thomas R. Beauchamp, Scarlett Gauthier, Stephanie Wehner·Nov 20, 2025

The aim of a quantum network is to enable the generation of end-to-end entangled links between end nodes of the network, so that they can execute quantum network applications. To facilitate this, it is desirable to have robust control of the network ...

Quantum Physics

Variational Quantum Integrated Sensing and Communication

Ivana Nikoloska, Osvaldo Simeone·Nov 20, 2025

The integration of sensing and communication functionalities within a common system is one of the main innovation drivers for next-generation networks. In this paper, we introduce a quantum integrated sensing and communication (QISAC) protocol that l...

Quantum Physicscs.ITcs.LGeess.SP

Analytical Fock Representation of Two-Mode Squeezing for Quantum Interference

Xuemei Gu, Carlos Ruiz-Gonzalez, Mario Krenn·Nov 20, 2025

Two-mode squeezing is central to entangled-photon generation and nonlinear interferometry, yet standard perturbative low-gain treatments and Gaussian formalisms can obscure the interference of photon-number amplitudes, especially in nonlinear interfe...

Quantum Physics

Optimizing Quantum Key Distribution Network Performance using Graph Neural Networks

Akshit Pramod Anchan, Ameiy Acharya, Leki Chom Thungon·Nov 20, 2025

This paper proposes an optimization of Quantum Key Distribution (QKD) Networks using Graph Neural Networks (GNN) framework. Today, the development of quantum computers threatens the security systems of classical cryptography. Moreover, as QKD network...

Quantum PhysicsCryptographycs.LGcs.NI

Tripartite Entanglement Generation in Atom-Coupled Dual Microresonators System

Abhishek Mandal, Joy Ghosh, Maruthi Manoj Brundavanam +1 more·Nov 20, 2025

In this work, we investigate the emergence and control of genuine tripartite entanglement in a hybrid cavity quantum electrodynamics architecture consisting of two linearly coupled single mode resonators, one of which interacts coherently with a two ...

Quantum Physics

Generation of spin-squeezed states using dipole-coupled spins

Yifan Song, Nabiha Hasan, Susumu Takahashi·Nov 19, 2025

Spins in solids and molecules are promising for applications of quantum sensing technology. The sensitivity of the quantum sensing depends on how precisely spin observables can be determined in the measurement, and is intrinsically limited by the unc...

Quantum PhysicsMesoscale Physics

How "Quantum" is your Quantum Computer? Macrorealism-based Benchmarking via Mid-Circuit Parity Measurements

Ben Zindorf, Lorenzo Braccini, Debarshi Das +1 more·Nov 19, 2025

To perform meaningful computations, Quantum Computers (QCs) must scale to macroscopic levels - i.e., to a large number of qubits - an objective pursued by most quantum companies. How to efficiently test their quantumness at these scales? We show that...

Quantum Physics

The impact of multimode sources on DLCZ type quantum repeaters

Emil R. Hellebek, Anders S. Sørensen·Nov 19, 2025

Long distance entanglement generation at a high rate is a major quantum technological goal yet to be fully realized, with the promise of many interesting applications, such as secure quantum computing on remote servers and quantum cryptography. One p...

Quantum Physics
Quantum Intelligence

Ask about quantum research, companies, or market developments.