Papers
Live trends in quantum computing research, updated daily from arXiv.
Total Papers
27,980
This Month
1,396
Today
0
Research Volume
13,221 papers in 12 months (+3% vs prior quarter)
Research Focus Areas
Papers by research theme (12 months). Hover for details.
Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Engineering the uncontrollable: Steering noisy spin-correlated radical-pairs with coherent and incoherent control
Farhan T. Chowdhury, Luke D. Smith, Daniel R. Kattnig·Oct 6, 2025
The quantum control of spin-correlated radical pairs (SCRPs) holds promise for the targeted manipulation of magnetic field effects, with potential applications ranging from the design of noise-resilient quantum information processors to genetically e...
Optimización de la Transmisión de Estados Cuánticos en Cadenas de Qubits usando Deep Reinforcement Learning y Algoritmos Genéticos
Sofía Perón Santana, Ariel Fiuri, Omar Osenda +1 more·Oct 6, 2025
Quantum state transfer (QST) via homogeneous spin chains plays a crucial role in building scalable quantum hardware. A basic quantum state transmission protocol prepares a state in one qubit and transfers it to another through a channel, seeking to m...
Creating Qubit States with Degenerate Two-level Systems
Zhuoran Bao, Daniel F. V. James·Oct 6, 2025
A qubit, or quantum bit, is conventionally defined as "a physical system for storing information that is capable of existing in either of two quantum states or in a superposition of both". In this paper, we examine the simple question of whether two ...
The tetrahedral Horn problem and asymptotics of U(n) 6j symbols
Anton Alekseev, Matthias Christandl, Thomas C. Fraser·Oct 6, 2025
Horn's problem is concerned with characterizing the eigenvalues $(a,b,c)$ of Hermitian matrices $(A,B,C)$ satisfying the constraint $A+B=C$ and forming the edges of a triangle in the space of Hermitian matrices. It has deep connections to tensor prod...
Information-thermodynamic bounds on precision in interacting quantum systems
Ryotaro Honma, Tan Van Vu·Oct 6, 2025
The thermodynamic uncertainty relation quantifies a trade-off between the relative fluctuations of trajectory currents and the thermodynamic cost, indicating that the current precision is fundamentally constrained by entropy production. In classical ...
Collusion-Resistant Quantum Secure Key Leasing Beyond Decryption
Fuyuki Kitagawa, Ryo Nishimaki, Nikhil Pappu·Oct 6, 2025
Secure key leasing (SKL) enables the holder of a secret key for a cryptographic function to temporarily lease the key using quantum information. Later, the recipient can produce a deletion certificate, which proves that they no longer have access to ...
Enhancing Optomechanical Entanglement and Mechanical Squeezing by the Synergistic Effect of Quadratic Optomechanical Coupling and Coherent Feedback
Ya-Feng Jiao, Ruo-Chen Wang, Jing-Xue Liu +5 more·Oct 6, 2025
Quantum entanglement and squeezing associated with the motions of massive mechanical oscillators play an essential role in both fundamental science and emerging quantum technologies, yet realizing such macroscopic nonclassical states remains a formid...
Quantum Reverse Shannon Theorem Simplified
Gilad Gour·Oct 6, 2025
We revisit the quantum reverse Shannon theorem, a central result in quantum information theory that characterizes the resources needed to simulate quantum channels when entanglement is freely available. We derive a universal additive upper bound on t...
Integrated photonic platform with high-speed entanglement generation and witnessing
Gong Zhang, Chao Wang, Koon Tong Goh +10 more·Oct 6, 2025
High-speed generation and efficient entanglement detection on a photonic chip are essential for quantum information applications but hard to achieve due to common photonic chips' material properties and limited component performance. In this work, we...
Quantum capacity amplification via privacy
Peixue Wu, Yunkai Wang·Oct 6, 2025
We investigate superadditivity of quantum capacity through private channels whose Choi-Jamiolkowski operators are private states. This perspective links the security structure of private states to quantum capacity and clarifies the role of the shield...
Lovász Meets Lieb-Schultz-Mattis: Complexity in Approximate Quantum Error Correction
Jinmin Yi, Ruizhi Liu, Zhi Li·Oct 6, 2025
Approximate quantum error correction (AQEC) provides a versatile framework for both quantum information processing and probing many-body entanglement. We reveal a fundamental tension between the error-correcting power of an AQEC and the hardness of c...
Quantum Error Correction with Superpositions of Squeezed Fock States
Yexiong Zeng, Fernando Quijandría, Clemens Gneiting +1 more·Oct 5, 2025
Bosonic codes, leveraging infinite-dimensional Hilbert spaces for redundancy, offer great potential for encoding quantum information. However, the realization of a practical continuous-variable bosonic code that can simultaneously correct both single...
Quantum computing for heavy-ion physics: near-term status and future prospects
João Barata·Oct 5, 2025
We discuss recent advances in applying Quantum Information Science to problems in high-energy nuclear physics. After outlining key developments, open challenges, and emerging connections between these disciplines, we highlight recent results on the s...
A quantum information method for early universe with non-trivial sound speed
Shi-Cheng Liu, Lei-Hua Liu, Bichu Li +2 more·Oct 5, 2025
Many quantum gravitational frameworks, such as DBI inflation, k-essence, and effective field theories obtained by integrating out heavy modes, can lead to a non-trivial sound speed. Meanwhile, our universe can be described as an open system. Under th...
Wormhole-Induced correlation: A Link Between Two Universes
Zhilong Liu, Wentao Liu, Xiaofang Liu +1 more·Oct 5, 2025
Motivated by the profound connection between quantum mechanics and spacetime geometry, particularly the conjectured correspondence between wormholes and quantum entanglement as proposed in the ER=EPR framework, this study investigate the influence of...
Ion-Based Characterization of Laser Beam Profiles for Quantum Information Processing
Ilyoung Jung, Frank G. Schroer, Philip Richerme·Oct 4, 2025
Laser-driven operations are a common approach for engineering one- and two-qubit gates in trapped-ion arrays. Measuring key parameters of these lasers, such as beam sizes, intensities, and polarizations, is central to predicting and optimizing gate s...
Floquet Diamond Sensor with Optimal Precision
Qi-Tao Duan, Teng Li, Si-Qi Chen +2 more·Oct 4, 2025
The diamond sensor has emerged as a promising platform for quantum sensing, enabling the estimation of physical quantities -- such as microwave~(MW) field -- with precision unattainable by classical counterpart. However, traditional diamond sensors s...
XG-Attention-WGAN PIC: Utilizing XGboost-Attention-WGAN for Photonics Integrated Circuit Design
Mahmood Hasani, Atena Shircharandabi, Masiha Rabiei +4 more·Oct 4, 2025
Photonic Integrated Circuits (PICs) are fundamental for optical computing, communication, quantum information processing, and precision sensing. However, traditional numerical simulations for designing PIC components are computationally intensive and...
High-spin magnetic ground states of neutral dopant clusters in semiconductors
Rhine Samajdar, Haonan Zhou, R. N. Bhatt·Oct 3, 2025
High-spin states hold significant promise for classical and quantum information storage and emerging magnetic memory technologies. Here, we present a systematic framework for engineering such high-spin magnetic states in dopant clusters formed from s...
Optimising quantum data hiding
Francesco Anna Mele, Ludovico Lami·Oct 3, 2025
Quantum data hiding is the existence of pairs of bipartite quantum states that are (almost) perfectly distinguishable with global measurements, yet close to indistinguishable when only measurements implementable with local operations and classical co...