Quantum Brain

Papers

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

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27,548

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Research Volume

12,928 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

1,747 papers found

Hybrid Authentication Protocols for Advanced Quantum Networks

Suchetana Goswami, Mina Doosti, Elham Kashefi·Apr 15, 2025

Authentication is a fundamental building block of secure quantum networks, essential for quantum cryptographic protocols and often debated as a key limitation of quantum key distribution (QKD) in security standards. Most quantum-safe authentication s...

Quantum Physics

Dynamical Casimir effect in superconducting cavities: from photon generation to universal quantum gates

F. Lombardo, P. I. Villar·Apr 15, 2025

This chapter explores various aspects of the Dynamical Casimir Effect (DCE) and its implications in the context of circuit quantum electrodynamics (cQED). We begin by reviewing the origin and fundamental properties of the DCE, including three equival...

Physics

The stellar decomposition of Gaussian quantum states

Arsalan Motamedi, Yuan Yao, Kasper Nielsen +4 more·Apr 14, 2025

We introduce the stellar decomposition, a novel method for characterizing non-Gaussian states produced by photon-counting measurements on Gaussian states. Given an $(m+n)$-mode Gaussian state $G$, we express it as an $(m+n)$-mode "Gaussian core state...

Quantum Physics

Practical Advantage of Classical Communication in Entanglement Detection.

Wen-Bo Xing, Min-Yu Lv, Lingxia Zhang +9 more·Apr 14, 2025

Entanglement is the cornerstone of quantum communication, yet conventional detection relies solely on local measurements. In this Letter, we present an experimental demonstration, based on an improved theoretical framework showing that one-way local ...

MedicinePhysics

Qiskit Quantum Circuits Posit Singlet state in Radical Pair-based Magnetoreception of Migratory Birds

Hillol Biswas, Spyridon Talaganis·Apr 14, 2025

Quantum computing applications in diverse domains are emerging rapidly. Given the limitations of classical computing techniques, the peculiarity of quantum circuits, which can observe quantum phenomena such as superposition, entanglement, and quantum...

Physics

An Exact Link between Nonlocal Nonstabilizerness and Operator Entanglement

Faidon Andreadakis, Paolo Zanardi·Apr 12, 2025

Nonstabilizerness is a quantum property of states associated with the non-Clifford resources required for their preparation. As a resource, nonstabilizerness complements entanglement, and the interplay between these two concepts has garnered signific...

Quantum Physics

Downloading many-qubit entanglement from continuous-variable cluster states

Zhihua Han, Hoi-Kwan Lau·Apr 11, 2025

Many-body entanglement is an essential resource for many quantum technologies, but its scalable generation has been challenging on qubit platforms. However, the generation of continuous-variable (CV) entanglement can be extremely efficient, but its u...

Quantum Physics

Automating quantum feature map design via large language models

Kenya Sakka, Kosuke Mitarai, Keisuke Fujii·Apr 10, 2025

Quantum feature maps are a key component of quantum machine learning, encoding classical data into quantum states to exploit the expressive power of high-dimensional Hilbert spaces. Despite their theoretical promise, designing quantum feature maps th...

Quantum PhysicsAI

Noise-aware entanglement generation protocols for superconducting qubits with impedance-matched FBAR transducers

Erin Sheridan, M. Senatore, Samuel Schwab +8 more·Apr 9, 2025

Connecting superconducting quantum processors to telecommunications-wavelength quantum networks is critically necessary to enable distributed quantum computing, secure communications, and other applications. Optically-mediated entanglement heralding ...

Physics

Entangling quantum memories over 420 km in fiber

Xi-Yu Luo, Chao-Yang Wang, Mingjuan Zheng +17 more·Apr 8, 2025

Long-distance entanglement is pivotal for quantum communication, distributed quantum computing and sensing. Significant progresses have been made in extending the distribution distance of entangled photons, either in free space or fiber. For future q...

Physics

Cryptomania v.s. Minicrypt in a Quantum World

Longcheng Li, Qian Li, X. Li +1 more·Apr 8, 2025

We prove that it is impossible to construct perfect-complete quantum public-key encryption (QPKE) with classical keys from quantumly secure one-way functions (OWFs) in a black-box manner, resolving a long-standing open question in quantum cryptograph...

Computer SciencePhysics

Scalable low-latency entanglement distribution for distributed quantum computing

Jiapeng Zhao, Yang Xu, Xiyuan Lu +5 more·Apr 7, 2025

Practical distributed quantum computing and error correction require quantum networks with high-qubit-rate, high-fidelity, and low-reconfiguration-latency. Unfortunately, current approaches are limited by fundamental constraints: single-channel entan...

Quantum Physicsphysics.optics

Notes on Quantum Soundscapes and Music

Miles Blencowe, Michael Casey, Kimberly Tan·Apr 6, 2025

We describe our investigations concerning the sonification of measured data from experiments involving various mesoscopic mechanical oscillator systems cooled down close to their quantum ground states, and music generation from a programmed quantum c...

Quantum Physics

Dynamically stable two-mode squeezing in cavity optomechanics

Chen Wang, Shi-fan Qi·Apr 4, 2025

Bosonic two-mode squeezed states are paradigmatic entangled states with broad applications in quantum information processing and quantum metrology. In this work, we propose a two-mode squeezing scheme in a hybrid three-mode cavity optomechanical syst...

Quantum Physics

Split Federated Learning for Low-Altitude Wireless Networks: Joint Sensing, Communication, Computation, and Control Co-design

Xiangwang Hou, Xianghe Wang, Jiacheng Wang +4 more·Apr 2, 2025

Unmanned aerial vehicles (UAVs) with integrated sensing, communication, computation and control (ISC3) capabilities have become key enablers of next-generation wireless networks. Federated edge learning (FEL) leverages UAVs as mobile learning agents ...

cs.DCEmerging Tech

Bubble Clustering Decoder for Quantum Topological Codes

Diego Forlivesi, L. Valentini, M. Chiani·Apr 2, 2025

Quantum computers are highly vulnerable to noise, necessitating the use of error-correcting codes to protect stored data. Errors must be continuously corrected over time to counteract decoherence using appropriate decoders. Therefore, fast decoding s...

Computer SciencePhysics

Strain Effects in a Directly Bonded Diamond‐on‐Insulator Substrate

Ioannis Varveris, G. Aliberti, Tianyin Chen +6 more·Mar 31, 2025

The direct bonding process of a diamond‐on‐insulator (DOI) substrate enables monolithic integration of diamond photonic structures for quantum computing by improving photon collection efficiency and entanglement generation rate between emitters. It a...

Physics

Powering Quantum Computation with Quantum Batteries

Yaniv Kurman, Kieran Hymas, Arkady Fedorov +2 more·Mar 30, 2025

Executing quantum logic in cryogenic quantum computers requires a continuous energy supply from room-temperature control electronics. This dependence on external energy sources creates scalability limitations due to control channel density and heat d...

Quantum Physics

Exploration of Design Alternatives for Reducing Idle Time in Shor's Algorithm: A Study on Monolithic and Distributed Quantum Systems

Moritz Schmidt, Abhoy Kole, Leon Wichette +3 more·Mar 28, 2025

Shor's algorithm is one of the most prominent quantum algorithms, yet finding efficient implementations remains an active research challenge. While many approaches focus on low-level modular arithmetic optimizations, a broader perspective can provide...

Quantum Physics

Spatial Mode Encoding for Quantum Key Distribution: From Hundreds to Thousands of Modes

Lukas Scarfe, Yingwen Zhang, Ebrahim Karimi·Mar 28, 2025

Here, we present a proof-of-principle high-dimensional quantum key distribution (QKD) protocol utilizing the position and momentum entanglement of photon pairs. The protocol exploits the fact that position and momentum form mutually unbiased bases, l...

Quantum Physicsphysics.optics
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