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

12,909 papers in 12 months (-5% vs prior quarter)

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

Qubit Platforms

Hardware platform mentions in abstractsPhotonic leads

4,695 papers found

Device Independent Quantum Secret Sharing Using Multiparty Pseudo-telepathy Game

Santanu Majhi, Goutam Paul·Dec 10, 2025

Device-independent quantum secret sharing (DI-QSS) provides security against untrusted quantum devices. While device-independent quantum key distribution (DI-QKD) using Mermin-Peres magic square game [Zhen et al., Phys. Rev. Lett, 2023] has been prop...

Quantum PhysicsCryptography

Pattern Based Quantum Key Distribution using the five qubit perfect code for eavesdropper detection

Mehedi Hasan Rumi·Dec 10, 2025

I propose a new quantum key distribution protocol that uses the five qubit error correction code to detect the presence of eavesdropper reliably. The protocol turns any information theoretical attacks into a classical guess about the pattern. The log...

Quantum Physics

Graph-Based Bayesian Optimization for Quantum Circuit Architecture Search with Uncertainty Calibrated Surrogates

Prashant Kumar Choudhary, Nouhaila Innan, Muhammad Shafique +1 more·Dec 10, 2025

Quantum circuit design is a key bottleneck for practical quantum machine learning on complex, real-world data. We present an automated framework that discovers and refines variational quantum circuits (VQCs) using graph-based Bayesian optimization wi...

Quantum PhysicsAIcs.LGNeural Computing

Exact and Efficient Stabilizer Simulation of Thermal-Relaxation Noise for Quantum Error Correction

Sean R. Garner, Nathan M. Myers, Meng Wang +3 more·Dec 9, 2025

Stabilizer-based simulation of quantum error-correcting codes typically relies on the Pauli-twirling approximation (PTA) to render non-Clifford noise classically tractable, but PTA can distort the behavior of physically relevant channels such as ther...

Quantum Physics

SAQ: Stabilizer-Aware Quantum Error Correction Decoder

David Zenati, Eliya Nachmani·Dec 9, 2025

Quantum Error Correction (QEC) decoding faces a fundamental accuracy-efficiency tradeoff. Classical methods like Minimum Weight Perfect Matching (MWPM) exhibit variable performance across noise models and suffer from polynomial complexity, while tens...

Quantum PhysicsAI

Emergent Non-Markovianity in Logical Qubit Dynamics

Jalan A. Ziyad, Robin Blume-Kohout, Kenneth Rudinger·Dec 9, 2025

Logical qubits encoded in quantum error correcting codes can exhibit non-Markovian dynamical evolution, even when the underlying physical noise is Markovian. To understand this emergent non-Markovianity, we define a Markovianity condition appropriate...

Quantum Physics

Spectroscopic readout of chiral photonic topology in a single-cavity spin-orbit-coupled Bose-Einstein condensate

Kashif Ammar Yasir, Gao Xianlong·Dec 9, 2025

Topological photonic phases are typically identified through band reconstruction, steady-state transmission, or real-space imaging of edge modes. In this work, we present a framework for spectroscopic readout of chiral photonic topology in a single d...

Quantum Physicscond-mat.quant-gasphysics.app-phphysics.optics

Strain sensitivity enhancement in a Grover-Michelson interferometer

Anthony D. Manni, Christopher R. Schwarze, David S. Simon +2 more·Dec 9, 2025

The Michelson interferometric phase detection resolution can be enhanced by replacing conventional beam splitters with novel directionally unbiased four-port scatterers, such as Grover coins. We present a quantitative analysis of the noise-to-signal ...

Quantum Physicsphysics.optics

Deterministic Quantum Communication Between Fixed-Frequency Superconducting Qubits via Broadband Resonators

Takeaki Miyamura, Zhiling Wang, Kohei Matsuura +5 more·Dec 9, 2025

Quantum communication between remote chips is essential for realizing large-scale superconducting quantum computers. For such communication, itinerant microwave photons propagating through transmission lines offer a promising approach. However, demon...

Quantum Physics

The utility of noiseless linear amplification and attenuation in single-rail discrete-variable quantum communications

Ozlem Erkilic, Aritra Das, Angela A. Baiju +3 more·Dec 9, 2025

Quantum communication offers many applications, with teleportation and superdense coding being two of the most fundamental. In these protocols, pre-shared entanglement enables either the faithful transfer of quantum states or the transmission of more...

Quantum Physics

Large-scale Lindblad learning from time-series data

Ewout van den Berg, Brad Mitchell, Ken Xuan Wei +1 more·Dec 9, 2025

In this work, we develop a protocol for learning a time-independent Lindblad model for operations that can be applied repeatedly on a quantum computer. The protocol is highly scalable for models with local interactions and is in principle insensitive...

Quantum Physics

Ab initio study of highly charged ion-induced Coulomb explosion imaging

Misa Viveiros, Samuel S. Taylor, Cody Covington +1 more·Dec 8, 2025

We present a theoretical investigation of ion-induced Coulomb explosion imaging (CEI) of pyridazine molecules driven by energetic C$^{5+}$ projectiles, using time-dependent density-functional theory (TDDFT) with Ehrenfest nuclear dynamics. By systema...

physics.chem-phQuantum Physics

Comparing quantum channels using Hermitian-preserving trace-preserving linear maps: A physically meaningful approach

Arindam Mitra, Jatin Ghai·Dec 8, 2025

In quantum technologies, quantum channels are essential elements for the transmission of quantum states. The action of a quantum channel usually introduces noise in the quantum state and thereby reduces the information contained in it. These are math...

Quantum Physics

A scalable and real-time neural decoder for topological quantum codes

Andrew W. Senior, Thomas Edlich, Francisco J. H. Heras +21 more·Dec 8, 2025

Fault-tolerant quantum computing will require error rates far below those achievable with physical qubits. Quantum error correction (QEC) bridges this gap, but depends on decoders being simultaneously fast, accurate, and scalable. This combination of...

Quantum Physicscs.LG

On-Demand Microwave Single-Photon Source Based on Tantalum Thin Film

Ying Hu, Sheng-Yong Li, En-Qi Chen +4 more·Dec 8, 2025

Single-photon sources are crucial for quantum information technologies. Here, we demonstrate a microwave single-photon source fabricated using a tantalum-based thin film, whose favorable material properties enable high-quality and stable photon emiss...

Quantum Physics

33 Gbit/s source-device-independent quantum random number generator based on heterodyne detection with real-time FPGA-integrated extraction

Marius Cizauskas, Hamid Tebyanian, Mark Fox +3 more·Dec 8, 2025

We present a high-speed continuous-variable quantum random number generator (QRNG) based on heterodyne detection of vacuum fluctuations. The scheme follows a source-device-independent (SDI) security model in which the entropy originates from quantum ...

Quantum Physics

DBMC-aNOMAly: Asynchronous NOMA with Pilot-Symbol Optimization Protocol for Diffusion-Based Molecular Communication Networks

Alexander Wietfeld, Wolfgang Kellerer·Dec 8, 2025

Multiple access (MA) schemes can enable cooperation between multiple nodes in future diffusion-based molecular communication (DBMC) networks. Non-orthogonal MA for DBMC networks (DBMC-NOMA) is a promising option for efficient simultaneous MA using a ...

Emerging Tech

Simulating general noise nearly as cheaply as Pauli noise

Mark Myers, Mariesa H. Teo, Rajesh Mishra +2 more·Dec 8, 2025

Stabilizer simulation of Clifford quantum circuits - error-correction circuits, Clifford subroutines, etc. - on classical computers has played a central role in our understanding of circuit performance. The stabilizer description, however, restricts ...

Quantum Physics

A versatile coherent Ising computing platform

Hai Wei, Chengjun Ai, Putuo Guo +12 more·Dec 8, 2025

Coherent Ising Machines (CIMs) have emerged as a hybrid form of quantum computing devices designed to solve NP-complete problems, offering an exciting opportunity for discovering optimal solutions. Despite challenges such as susceptibility to noise-i...

Quantum Physics

Scheduling in Quantum Satellite Networks: Fairness and Performance Optimization

Ashutosh Jayant Dikshit, Naga Lakshmi Anipeddi, Prajit Dhara +5 more·Dec 8, 2025

Quantum satellite networks offer a promising solution for achieving long-distance quantum communication by enabling entanglement distribution across global scales. This work formulates and solves the quantum satellite network scheduling problem by op...

Quantum Physicscs.PF
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