Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Classical gravity cannot mediate entanglement
Chiara Marletto, Jonathan Oppenheim, Vlatko Vedral +1 more·Nov 10, 2025
In Nature, 646, 813 (2025), Aziz and Howl claim that classical (unquantised) gravity produces entanglement. We show that their model does not produce entanglement. Even if the model produced entanglement, it would be mediated by the quantised matter ...
AcousTools: A 'Full-Stack', Python-Based, Acoustic Holography Library
Joshua Mukherjee, Giorgos Christopoulos, Zhouyang Shen +2 more·Nov 10, 2025
Acoustic Holography is an emerging field where mid-air ultrasound is controlled and manipulated for novel and exciting applications. These range from mid-air haptics, volumetric displays, contactless fabrication, and even chemical and biomedical appl...
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...
Efficient certification of intractable quantum states with few Pauli measurements
Sami Abdul Sater, Maxime Garnier, Thierry Martinez +2 more·Nov 10, 2025
Verification of quantum computations is crucial as experiments advance toward fault-tolerant quantum computing. Yet, no efficient protocol exists for certifying states generated in the Magic-State Injection model -- the foundation of several fault-to...
Transport regimes of biphoton-state quantum walks in ordered and disordered arrays of nonlinear waveguides
Jefferson Delgado-Quesada, Edgar A. Rojas-González·Nov 10, 2025
A quantum walk in an ordered medium exhibits ballistic propagation. A related process is the driven quantum walk, in which the number of walkers varies along the propagation. In this work, we show that a driven quantum walk of biphoton states in an a...
Bridging the daemonic gap en route to charge multi-mode batteries via a single auxiliary
Chandrima B. Pushpan, Amit Kumar Pal·Nov 10, 2025
We show that harnessing daemonic advantage is possible while charging a quantum battery by first time-evolving the battery collectively with an auxiliary charger, followed by an energy extraction via tracing out the charger. We define the difference ...
The time qubit
Yakov Bloch·Nov 10, 2025
A spin precessing in a magnetic field is often used as a quantum clock, for example in tunneling-time measurements. We show that such a clock can exist in a coherent superposition of opposite temporal orientations, treating the arrow of time as a qua...
A Classical-Quantum Hybrid Architecture for Physics-Informed Neural Networks
Said Lantigua, Gilson Giraldi, Renato Portugal·Nov 10, 2025
In this work, we introduce the Quantum-Classical Hybrid Physics-Informed Neural Network with Multiplicative and Additive Couplings (QPINN-MAC): a novel hybrid architecture that integrates the framework of Physics-Informed Neural Networks (PINNs) with...
Matrix-product state skeletons in Onsager-integrable quantum chains
Imogen Camp, Nick G. Jones·Nov 10, 2025
Matrix-product state (MPS) skeletons are connected networks of Hamiltonians with exact MPS ground states that underlie a phase diagram. Such skeletons have previously been found in classes of free-fermion models. For the translation-invariant BDI and...
Optimal phase estimation in the presence of correlated dephasing
Srijon Ghosh, Arkadiusz Kobus, Stanisław Kurdziałek +1 more·Nov 10, 2025
We investigate optimal metrological protocols for phase estimation in the presence of correlated dephasing noise, including spin-squeezed states sensing strategies as well as parallel and adaptive protocols optimized using tensor-network based numeri...
Survival acceleration
Yakov Bloch, Avshalom C. Elitzur·Nov 10, 2025
Relativistic time dilation implies that an accelerating excited atom would have its lifetime prolonged in the lab frame. In this paper, we demonstrate a complementary effect: Longer-lived excited atoms turn out to have been accelerated. We propose th...
Direct imaging of magnetotransport at graphene-metal interfaces with a single-spin quantum sensor
C. Ding, M. L. Palm, K. Kohli +3 more·Nov 10, 2025
Magnetotransport underlines many important phenomena in condensed matter physics, such as the Hall effect and magnetoresistance (MR) effect. Thus far, most magnetotransport studies are based on bulk resistance measurements without direct access to mi...
A Comprehensive Approach to Finite-Bath Open Quantum Systems: Exact Dynamics
Devvrat Tiwari, Subhashish Banerjee·Nov 10, 2025
Here, we develop the exact dynamics of the central spin model, modeling a finite-bath open quantum system. Particularly, two different types of interactions are investigated between the system and the bath: Heisenberg interaction with constant intera...
Planar Dirac equation with radial contact potentials
J. T. Lunardi, S. Salamanca, J. Negro +1 more·Nov 10, 2025
We investigate the planar Dirac equation with the most general time-independent contact (singular) potential supported on a circumference. Taking advantage of the radial symmetry, the problem is effectively reduced to a one-dimensional one (the radia...
Synchronizing microwave cQED limit-cycle oscillators
Cecilie Hermansen, Jens Paaske·Nov 10, 2025
Self-sustained oscillators play a central role in the stabilization and synchronization of complex dynamical systems. A number of different physical systems are currently being investigated to clarify the importance of such active components in the q...
Feedback-Enhanced Driven-Dissipative Quantum Batteries in Waveguide-QED Systems
Xian-Li Yin, Meixi Guo, Jian Huang +2 more·Nov 10, 2025
Quantum batteries (QBs), acting as energy storage devices, have potential applications in future quantum science and technology. However, the QBs inevitably losses energy due to their interaction with environment. How to enhance the performance of th...
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...
Recent Advances on Nonadiabatic Geometric Quantum Computation
Zheng-Yuan Xue, Cheng-Yun Ding·Nov 10, 2025
The geometric phase stands as a foundational concept in quantum physics, revealing deep connections between geometric structures and quantum dynamical evolution. Unlike dynamical phases, geometric phases exhibit intrinsic resilience to certain types ...
Sample-efficient quantum error mitigation via classical learning surrogates
Wei-You Liao, Ge Yan, Yujin Song +5 more·Nov 10, 2025
The pursuit of practical quantum utility on near-term quantum processors is critically challenged by their inherent noise. Quantum error mitigation (QEM) techniques are leading solutions to improve computation fidelity with relatively low qubit-overh...
Achieving fast and robust perfect entangling gates via reinforcement learning
Leander Grech, Matthias G. Krauss, Mirko Consiglio +4 more·Nov 10, 2025
Noisy intermediate-scale quantum computers hold the promise of tackling complex and otherwise intractable computational challenges through the massive parallelism offered by qubits. Central to realizing the potential of quantum computing are perfect ...