Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Learning functions of quantum states with distributed architectures
Marta Gili, Eliana Fiorelli, Ane Blázquez-García +2 more·Feb 12, 2026
Distributed architectures are gaining prominence in quantum machine learning as a means to overcome hardware limitations and enable scalable quantum information processing. In this context, we analyze the design and performance of distributed Quantum...
Experimental setup for the combined study of spin ensembles and superconducting quantum circuits
Lukas Vogl, Gerhard B. P. Huber, Ana Strinić +5 more·Feb 12, 2026
A hybrid quantum computing architecture combining quantum processors and quantum memory units allows for exploiting each component's unique properties to enhance the overall performance of the total system. However, superconducting qubits are highly ...
Experimental challenges and prospects for quantum-enhanced energy conversion: Stationary Fano coherence in V-type qutrits interacting with polarized incoherent radiation
Ludovica Donati, Francesco Saverio Cataliotti, Stefano Gherardini·Feb 12, 2026
Quantum coherence offers potential for energy conversion technologies. It influences light absorption and emission, affecting energy conversion limits and efficiency. As a result, quantum coherence is being harnessed to boost performance in quantum h...
First-order phase transition in atom-molecule quantum degenerate mixtures with coherent three-body recombination
G. A. Bougas, A. Vardi, H. R. Sadeghpour +2 more·Feb 12, 2026
We map the phase diagram of a two-mode atom-molecule Bose-Einstein condensate with Fano-Feshbach and coherent three-body recombination (cTBR) terms. The standard second order phase transition observed as the molecular energy is tuned through the Fesh...
Krylov Subspace Dynamics as Near-Horizon AdS$_2$ Holography
Hyun-Sik Jeong·Feb 12, 2026
We establish a holographic gravitational dual for the fundamental dynamical equations governing operator growth in Krylov subspace. Specifically, we show that the deep interior of the Krylov subspace maps directly to the near-horizon regime of AdS$_2...
The Power of Two Bases: Robust and copy-optimal certification of nearly all quantum states with few-qubit measurements
Andrea Coladangelo, Jerry Li, Joseph Slote +1 more·Feb 12, 2026
A central task in quantum information science is state certification: testing whether an unknown state is $ε_1$-close to a fixed target state, or $ε_2$-far. Recent work has shown that surprisingly simple measurement protocols--comprising only single-...
Quantization Mapping on Dirac Dynamics via Voltage-Driven Charge Density in Monolayer Graphene: A Klein Paradox and Entropy-Ruled Wavevector Mechanics Study
Karuppuchamy Navamani·Feb 12, 2026
Thermodynamics coupled with quantum features on electron and hole dynamics in Dirac materials is quite interesting and crucial for real device applications. The correlation between the formation of electron-hole puddles in nearer to the charge neutra...
Rapid Dissipative Ground State Preparation at Chemical Transition States
Thomas W. Watts, Soumya Sarkar, Daniel Collins +4 more·Feb 12, 2026
Simulating chemical reactions is a central challenge in computational chemistry, characterized by an uneven difficulty profile: while equilibrium reactant and product geometries are often classically tractable, intermediate transition states frequent...
Scalable and Highly Fault-Tolerant Circular Quantum Byzantine Agreement
Chen-Xun Weng, Ming-Yang Li, Shi-Gen Li +4 more·Feb 12, 2026
Quantum Byzantine Agreement (QBA), a cornerstone of quantum blockchain, offers inherent advantages in security and fault tolerance over classical protocols, guaranteed by the laws of quantum mechanics. However, existing multiparty QBA protocols face ...
Complete freezing of initially maximal entanglement in Schwarzschild black hole
Si-Han Li, Hui-Chen Yang, Rui-Yang Xu +1 more·Feb 12, 2026
Gravitational effects associated with black holes are widely believed to universally degrade quantum entanglement, with the loss of maximal entanglement being particularly severe and even irreversible for bosonic fields. In this work, we investigate ...
Control the qubit-qubit coupling with double superconducting resonators
Hui Wang, Rui Wang, Daichi Sugiyama +5 more·Feb 12, 2026
We experimentally studied the switching off processes in the double-resonator coupler superconducting quantum circuit. In both frequency and time-domain, we observed the variation of qubit-qubit effective coupling by tuning the frequency differences ...
Generalized entropic uncertainty relation and non-classicality in Schwarzschild black hole
Rui-Jie Yao, Dong Wang·Feb 12, 2026
The uncertainty principle constitutes a fundamental pillar of quantum theory, representing one of the most distinctive features that differentiates quantum mechanics from classical physics. In this study, we firstly propose a novel generalized entrop...
Structural control of two-level defect density revealed by high-throughput correlative measurements of Josephson junctions
Oliver F. Wolff, Harshvardhan Mantry, Rahim Raja +8 more·Feb 12, 2026
Materials defects in Josephson junctions (JJs), often referred to as two-level systems (TLS), couple to superconducting qubits and are a critical bottleneck for scalable quantum processors. Despite their importance, understanding the microscopic sour...
The Pinnacle Architecture: Reducing the cost of breaking RSA-2048 to 100 000 physical qubits using quantum LDPC codes
Paul Webster, Lucas Berent, Omprakash Chandra +5 more·Feb 12, 2026
The realisation of utility-scale quantum computing inextricably depends on the design of practical, low-overhead fault-tolerant architectures. We introduce the \textit{Pinnacle Architecture}, which uses quantum low-density parity check (QLDPC) codes ...
Search-Based Quantum Program Testing via Commuting Pauli String
Asmar Muqeet, Shaukat Ali, Paolo Arcaini·Feb 12, 2026
Quantum software testing is important for reliable quantum software engineering. Despite recent advances, existing quantum software testing approaches rely on simple test inputs and statistical oracles, costly program specifications, and limited vali...
QDBFT: A Dynamic Consensus Algorithm for Quantum-Secured Blockchain
Fei Xu, Cheng Ye, Ouyang Jie +9 more·Feb 12, 2026
The security foundation of blockchain system relies primarily on classical cryptographic methods and consensus algorithms. However, the advent of quantum computing poses a significant threat to conventional public-key cryptosystems based on computati...
Solving the Post-Quantum Control Plane Bottleneck: Energy-Aware Cryptographic Scheduling in Open RAN
Neha Gupta, Hamed Alimohammadi, Mohammad Shojafar +2 more·Feb 12, 2026
The Open Radio Access Network (O-RAN) offers flexibility and innovation but introduces unique security vulnerabilities, particularly from cryptographically relevant quantum computers. While Post-Quantum Cryptography (PQC) is the primary scalable defe...
Microscopic Origin of Superradiant Biphoton Emission in Atomic Ensembles
Zi-Yu Liu, Jiun-Shiuan Shiu, Wei-Lin Chen +1 more·Feb 11, 2026
Superradiant biphoton emission from atomic ensembles provides a powerful route to generating highly correlated quantum light, yet its microscopic physical origin has remained incompletely understood. In particular, it is often unclear how collective ...
Krylov space perturbation theory for quantum synchronization in closed systems
Nicolas Loizeau, Berislav Buča·Feb 11, 2026
Strongly interacting quantum many-body systems are expected to thermalize, however, some evade thermalization due to symmetries. Quantum synchronization provides one such example of ergodicity breaking, but previous studies have focused on open syste...
Nonlinear integrated quantum photonics with AlGaAs
F. Baboux, G. Moody, S. Ducci·Feb 11, 2026
Integrated photonics provides a powerful approach for developing compact, stable and scalable architectures for the generation, manipulation and detection of quantum states of light. To this end, several material platforms are being developed in para...