Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Multipolar and nonlocal effects in plasmon-mediated entanglement generation
Luke C. Ugwuoke, Tjaart P. J. Krüger, Mark S. Tame·Nov 12, 2025
The generation of quantum entanglement is important for a wide range of quantum technology protocols. In nanophotonics, a promising platform for quantum technologies, entanglement generation via plasmon-mediated coupling in quantum dot qubits is ofte...
Operational Coherent Measurements with Steering and Randomness
Chellasamy Jebarathinam, Huan-Yu Ku, Hsi-Sheng Goan·Nov 12, 2025
Measurement incompatibility underpins randomness generation in nonlocal phenomena. However, at its root, a more fundamental quantum feature is noncommuting (or coherent) measurements. This raises a central question: How can we operationally character...
Electromagnetic Feature Extraction in Superconducting Quantum Circuits: An Open-Source Finite-Element Workflow Using Palace
Jiale Ye, Jiaheng Wang, Yu-xi Liu·Nov 12, 2025
Accurate electromagnetic (EM) feature extraction, including element characterization, eigenmodes, and field distributions, is essential for superconducting quantum circuit design. To streamline this process, we present a workflow built around Palace,...
Space-Time Optimisations for Early Fault-Tolerant Quantum Computation
Sanaa Sharma, Prakash Murali·Nov 12, 2025
Fault-tolerance is the future of quantum computing, ensuring error-corrected quantum computation that can be used for practical applications. Resource requirements for fault-tolerant quantum computing (FTQC) are daunting, and hence, compilation techn...
Beyond critical coupling: optimal design considerations for spontaneous four-wave mixing in microring resonators
Joseph M. Lukens, Karthik V. Myilswamy, Alexander Miloshevsky +1 more·Nov 11, 2025
We present a self-contained analytical model for biphoton generation in microring resonators. Encompassing both all-pass and add-drop geometries, identical and distinct pump and biphoton coupling coefficients, and continuous-wave and pulsed pumping, ...
Cryogenic source of atomic tritium for neutrino-mass measurements and precision spectroscopy
Aleksei Semakin, Janne Ahokas, Tom Kiilerich +9 more·Nov 11, 2025
We propose a concept for a cryogenic source of atomic tritium at sub-Kelvin temperatures and energies suitable for magnetic trapping. The source is based on the dissociation of solid molecular T2 films below 1 K by electrons from a pulsed RF discharg...
Enhanced quantum correlations from joint pump and photon pair scattering
Mamoon Safadi, Nir Kuchuk, Ohad Lib +2 more·Nov 11, 2025
Scattering of non-classical light is enabling new ways to study and control photon transport. However, advances in this field often rely on simplifying assumptions regarding the quantum light's generation and its source. In this work, we relax some o...
Quantum-centric machine learning for molecular dynamics
Yanxian Tao, Lingyun Wan, Xiongzhi Zeng +4 more·Nov 11, 2025
Accurate and efficient prediction of electronic wavefunctions is central to ab initio molecular dynamics (AIMD) and electronic structure theory. However, conventional ab initio methods require self-consistent optimization of electronic states at ever...
Nonclassical State Generation and Quantum Metrology in the Double-Morse Potential
Firoz Chogle, Berihu Teklu, Jorge Zubelli +1 more·Nov 10, 2025
In this paper, we investigate the nonlinear properties of the double-Morse potential as a possible resource for single-mode quantum states because of its double-well structure and anharmonicity. We derive the ground state wave function and the associ...
From Heisenberg and Schrödinger to the P vs. NP Problem
Galina Weinstein·Nov 10, 2025
This essay offers an epistemological reinterpretation of the foundational divide between matrix mechanics and wave mechanics. Though formally equivalent, the two theories embody distinct modes of knowing: procedural construction and recognitional ver...
Biphoton state generation and engineering with bright hybrid III-V/Silicon photonic devices
Lorenzo Lazzari, Jérémie Schuhmann, Othmane Meskine +7 more·Nov 10, 2025
Hybrid photonic circuits, harnessing the complementary strengths of multiple materials, represent a key resource to enable compact, scalable platforms for quantum technologies. In particular, the availability of bright sources of tunable biphoton sta...
No-signalling-projection-invariant Bell inequalities
Soumyadip Patra, Jitendra Prakash, Aaditya Paudel +1 more·Nov 10, 2025
In this paper, we highlight how any Bell inequality for a configuration involving $n$ parties each performing one of $m$ binary-outcome measurements has a canonical form that is no-signalling-projection invariant. Specifically, the $L^2$-projection o...
Self-induced manipulation of biphoton entanglement in topologically distinct modes
Wei-Wei Zhang, Chao Chen, Jizhou Wu·Nov 8, 2025
Biphoton states have shown promising applications in quantum information processing, including quantum communications, quantum metrology, and quantum imaging. The generation and manipulation of biphoton entanglement in topologically distinct modes pa...
Semi-device-independent randomness certification on discretized continuous-variable platforms
Moisés Alves, Vitor L. Sena, Santiago Zamora +4 more·Nov 7, 2025
Randomness is fundamental for secure communication and information processing. While continuous-variable optical systems offer an attractive platform for this task, certifying genuine quantum randomness in such setups remains challenging. We present ...
Controlled generation of 3D vortices in driven atomic Josephson junctions
Vijay Pal Singh, Ludwig Mathey, Herwig Ott +1 more·Nov 7, 2025
We propose an ac-driven atomic Josephson junction as a clean and tunable source of three dimensional (3D) solitary waves in quantum fluids. Depending on the height of the junction barrier, the emitted excitations appear as vortex rings at low velocit...
Shallow instantaneous quantum polynomial-time circuits for generative modeling on noisy intermediate-scale quantum hardware
Oriol Balló-Gimbernat, Marcos Arroyo-Sánchez, Paula García-Molina +2 more·Nov 7, 2025
Generative modeling is one of the most promising applications of quantum machine learning, yet training and deploying Quantum Generative Models (QGMs) on near-term hardware remains effectively intractable due to prohibitive gradient estimation and im...
Adaptive Entanglement-Aware Routing for Satellite Quantum Networks under Orbital and Atmospheric Variability
Dhrumil Bhatt, Vidushi Kumar·Nov 7, 2025
The expansion of satellite-based quantum networks requires adaptive routing mechanisms that can sustain entanglement under dynamic orbital and atmospheric conditions. Conventional schemes, often tailored to static or idealised topologies, fail to cap...
Optimization of Information Reconciliation for Decoy-State Quantum Key Distribution over a Satellite Downlink Channel
Thomas Scarinzi, Davide Orsucci, Marco Ferrari +1 more·Nov 7, 2025
Quantum key distribution (QKD) is a cryptographic solution that leverages the properties of quantum mechanics to be resistant and secure even against an attacker with unlimited computational power. Satellite-based links are important in QKD because t...
Ultimate photon entanglement in biexciton cascade
V. N. Mantsevich, D. S. Smirnov, E. L. Ivchenko·Nov 7, 2025
The polarization entanglement of photons emitted by semiconductor quantum dots is unavoidably limited by the spin fluctuations of the host lattice nuclei. To overcome this limitation, we develop a theory of entangled photon pair generation by a symme...
Continuous-variable Measurement Device Independent MIMO Quantum Key Distribution for THz Communications
Leixin Wu, Congtian Deng, Jiayu Pan +6 more·Nov 7, 2025
Although multiple-input multiple-output (MIMO) terahertz (THz) continuous-variable quantum key distribution (CVQKD) is theoretically secure, practical vulnerabilities may arise due to detector imperfections. This paper explores a CV measurement-devic...