Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Quantum Elastic Network Models and their Application to Graphene
Ioannis Kolotouros, Adithya Sireesh, Stuart Ferguson +3 more·Jan 8, 2026
Molecular dynamics simulations are a central computational methodology in materials design for relating atomic composition to mechanical properties. However, simulating materials with atomic-level resolution on a macroscopic scale is infeasible on cu...
Composable simultaneous purification: when all communication scenarios reduce to spatial correlations
Matilde Baroni, Dominik Leichtle, Ivan Šupić +2 more·Jan 8, 2026
Bell non-locality is a powerful framework to distinguish classical, quantum and post-quantum resources, which relies on non-communicating players. Under which restriction can we have the same separations, if we allow for communication? Non-signalling...
Low-loss Material for Infrared Protection of Cryogenic Quantum Applications
Markus Griedel, Max Kristen, Biliana Gasharova +3 more·Jan 8, 2026
The fragile quantum states of low-temperature quantum applications require protection from infrared radiation caused by higher-temperature stages or other sources. We propose a material system that can efficiently block radiation up to the optical ra...
Simulation of noisy quantum circuits using frame representations
Janek Denzler, Jose Carrasco, Jens Eisert +1 more·Jan 8, 2026
One of the core research questions in the theory of quantum computing is to find out to what precise extent the classical simulation of a noisy quantum circuits is possible and where potential quantum advantages can set in. In this work, we introduce...
Scalable Generation of Macroscopic Fock States Exceeding 10,000 Photons
Ming Li, Weizhou Cai, Ziyue Hua +7 more·Jan 8, 2026
The scalable preparation of bosonic quantum states with macroscopic excitations poses a fundamental challenge in quantum technologies, limited by control complexity and photon-loss rates that severely constrain prior theoretical and experimental effo...
Unitary fault-tolerant encoding of Pauli states in surface codes
Luis Colmenarez, Remmy Zen, Jan Olle +2 more·Jan 8, 2026
In fault-tolerant quantum computation, the preparation of logical states is a ubiquitous subroutine, yet significant challenges persist even for the simplest states required. In the present work, we present a unitary, scalable, distance-preserving en...
Driver-Intention Prediction with Deep Learning: Real-Time Brain-to-Vehicle Communication
Niloufar Alavi, Swati Shah, Rezvan Alamian +1 more·Jan 8, 2026
Brain-computer interfaces (BCIs) allow direct communication between the brain and electronics without the need for speech or physical movement. Such interfaces can be particularly beneficial in applications requiring rapid response times, such as dri...
Preconditioned Multivariate Quantum Solution Extraction
Gumaro Rendon, Stepan Smid·Jan 8, 2026
Numerically solving partial differential equations is a ubiquitous computational task with broad applications in many fields of science. Quantum computers can potentially provide high-degree polynomial speed-ups for solving PDEs, however many algorit...
Anomaly to Resource: The Mpemba Effect in Quantum Thermometry
Pritam Chattopadhyay, Jonas F. G. Santos, Avijit Misra·Jan 8, 2026
Quantum thermometry provides a key capability for nanoscale devices and quantum technologies, but most existing strategies rely on probes initialized near equilibrium. This equilibrium paradigm imposes intrinsic limitations: sensitivity is tied to lo...
Exponential capacity scaling of classical GANs compared to hybrid latent style-based quantum GANs
Milan Liepelt, Julien Baglio·Jan 8, 2026
Quantum generative modeling is a very active area of research in looking for practical advantage in data analysis. Quantum generative adversarial networks (QGANs) are leading candidates for quantum generative modeling and have been applied to diverse...
Landau Zener Interaction Enhanced Quantum Sensing in Spin Defects of Hexagonal Boron Nitride
Mohammad Abdullah Sadi, Tiamike Dudley, Luca Basso +6 more·Jan 8, 2026
Negatively charged boron vacancies (V$_{\text{B}}^{-}$) in hexagonal boron nitride (hBN) comprise a promising quantum sensing platform, optically addressable at room temperature and transferrable onto samples. However, broad hyperfine-split spin tran...
Encoding complex-balanced thermalization in quantum circuits
Yiting Mao, Peigeng Zhong, Haiqing Lin +2 more·Jan 8, 2026
We propose a protocol for effectively implementing complex-balanced thermalization via Markovian processes on a quantum-circuit platform that couples the system with engineered reservoir qubits. The non-orthogonality of qubit eigenstates facilitates ...
Entanglement negativity for a free scalar chiral current
Malen Arias, Marina Huerta, Andrei Rotaru +1 more·Jan 8, 2026
We study the entanglement negativity for the free, scalar chiral current in two spacetime dimensions, which is a simple model violating the Haag duality in regions with nontrivial topology. For the ground state of the system, both on the line and on ...
Assessing the Impact of Low Resolution Control Electronics on Quantum Neural Network Performance
Rupayan Bhattacharjee, Rohit Sarma Sarkar, Sergi Abadal +2 more·Jan 8, 2026
Scaling quantum computers requires tight integration of cryogenic control electronics with quantum processors, where Digital-to-Analog Converters (DACs) face severe power and area constraints. We investigate quantum neural network (QNN) training and ...
Signatures of Spin Coherence in Chiral Coupled Quantum Dots
Hanna T. Fridman, Rotem Malkinson, Amir Hen +3 more·Jan 8, 2026
Chiral-induced spin selectivity (CISS) enables spin selectivity of charge carriers in chiral molecular systems without magnetic materials. While spin selectivity has been widely investigated, its quantum coherence has not yet been explored. Here, we ...
Machine learning-aided direct estimation of coherence and entanglement for unknown states
Ting Lin, Zhihua Chen, Kai Wu +3 more·Jan 8, 2026
Quantum coherence and entanglement are fundamental resources in quantum technologies, yet their efficient estimation for unknown states by employing minimal resources in experimental settings remains challenging, particularly in high-dimensional syst...
Fast, high-fidelity Transmon readout with intrinsic Purcell protection via nonperturbative cross-Kerr coupling
Guillaume Beaulieu, Jun-Zhe Chen, Marco Scigliuzzo +5 more·Jan 8, 2026
Dispersive readout of superconducting qubits relies on a transverse capacitive coupling that hybridizes the qubit with the readout resonator, subjecting the qubit to Purcell decay and measurement-induced state transitions (MIST). Despite the widespre...
High-Rate Free-Running Reference-Frame-Independent Measurement-Device-Independent Quantum Key Distribution with Classified Distillation
Xin Liu, Zhicheng Luo, Kaibiao Qin +3 more·Jan 8, 2026
Reference-frame-independent measurement-device-independent quantum key distribution (RFI-MDI-QKD) eliminates detector side-channel attacks and avoids reference-frame calibration. While its feasibility has been widely demonstrated, existing implementa...
Long-lived state of a helium-like magnesium donor in silicon
R. Kh. Zhukavin, D. A. Postnov, P. A. Bushuikin +10 more·Jan 8, 2026
The relaxation of ortho states of a helium-like Mg donor in silicon is investigated by measuring the modulation of background radiation transmission through impurity centers under pulsed photoexcitation. Long-lived states of the spin-triplet 1s(3T2) ...
Virtual temperatures as a key quantifier for passive states in quantum thermodynamic processes
Sachin Sonkar, Ramandeep S. Johal·Jan 8, 2026
We analyze the role of virtual temperatures for passive quantum states through the lens of majorization theory. A mean temperature over the virtual temperatures of adjacent energy levels is defined to compare the passive states of the system resultin...