Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Probing holographic conformal field theories
Ming Zhang, Jiayue Yang, Dyuman Bhattacharya +1 more·Feb 8, 2026
We introduce an operational, boundary-first framework that embeds relativistic quantum-information protocols into anti-de Sitter/Conformal Field Theory (AdS/CFT) by coupling an Unruh--DeWitt detector directly to a local scalar primary operator of a h...
Quantum Evolution of Hopf Algebra Hamiltonians
Michele Arzano, Antonio Del Prete, Domenico Frattulillo·Feb 8, 2026
In recent years, growing attention has been devoted to the possibility that theories with deformed symmetries, associated with certain models of non-commutative spacetime, may encode a fundamental form of decoherence. This effect should be described ...
Minimal nonintegrable models with three-site interactions
Wen-Ming Fan, Kun Hao, Xiao-Hui Wang +2 more·Feb 8, 2026
A systematic understanding of integrability breaking in translationally invariant spin chains with genuine three-site interactions remains lacking. In this work, we introduce and classify minimal nonintegrable spin-$1/2$ Hamiltonians, defined as mode...
Geometry-Enabled Radiation from Structured Paraxial Electrons
M. S. Epov, I. E. Shenderovich, S. S. Baturin·Feb 8, 2026
We present a microscopic calculation of spontaneous photon emission by twisted (paraxial) electrons propagating through inhomogeneous, axisymmetric magnetic fields. We construct exact electron states that incorporate transverse mode structure and wav...
Semi-device-independent certification of high-dimensional quantum channels
Mengyan Li, Yanning Jia, Fenzhuo Guo +3 more·Feb 8, 2026
Certifying high-dimensional quantum channels is essential for ensuring the reliability of quantum communication protocols. Existing certification schemes often rely on fully trusted internal devices, which is difficult to achieve in realistic scenari...
Geometric criticality in the driven Jaynes-Cummings model
Ken Chen, Jia-Hao Lv, Hao-Long Zhang +4 more·Feb 8, 2026
When the photonic mode in the Jaynes-Cummings model is driven by an external classical field, the system can undergo the photon-blockade breakdown phase transition at a critical point. Such a phase transition has been detailedly investigated, but the...
Quantum Steering and Entanglement in a Tritter: Hierarchy under Loss
Jifeng Sun, Shumin Yang, Teng Zhao +2 more·Feb 8, 2026
Multipartite entangled states of continuous variables are fundamental resources for scalable quantum information processing. We study the correlation hierarchy in a tripartite state engineered by mixing a two-mode squeezed vacuum with a coherent stat...
HoloGraph: All-Optical Graph Learning via Light Diffraction
Yingjie Li, Shanglin Zhou, Caiwen Ding +1 more·Feb 7, 2026
As a representative of next-generation device/circuit technology beyond CMOS, physics-based neural networks such as Diffractive Optical Neural Networks (DONNs) have demonstrated promising advantages in computational speed and energy efficiency. Howev...
All-Optical Segmentation via Diffractive Neural Networks for Autonomous Driving
Yingjie Li, Daniel Robinson, Weilu Gao +1 more·Feb 7, 2026
Semantic segmentation and lane detection are crucial tasks in autonomous driving systems. Conventional approaches predominantly rely on deep neural networks (DNNs), which incur high energy costs due to extensive analog-to-digital conversions and larg...
Two-phase driving of a linear radio-frequency ion trap
Santhosh Surendra, Akos Hoffmann, Michael Köhl·Feb 7, 2026
A linear radio-frequency Paul trap is traditionally driven with one diagonal pair of electrodes grounded and the other connected to a high-voltage radio-frequency source. This method simplifies impedance matching of the voltage source to the trap. Ho...
Momentum-Driven Reversible Logic Accelerates Efficient Irreversible Universal Computation
Kuen Wai Tang, Kyle J. Ray, James P. Crutchfield·Feb 7, 2026
We present implementations of two physically-embedded computation-universal logical operations using a 2-bit logical unit composed of coupled quantum flux parametrons -- Josephson-junction superconducting circuits. To illustrate universality, we inve...
Hidden Kinematics and Dual Quantum References in Magnetic Resonance
Sunghyun Kim·Feb 7, 2026
Spin resonance phenomena are conventionally described using transition probabilities formulated in a rotating frame, whose physical meaning implicitly depends on the choice of quantum reference standard. In this Colloquium, we show that a spin in a r...
A gravitationally induced decoherence model for photons in the context of the relational formalism
Max Joseph Fahn, Kristina Giesel, Roman Kemper·Feb 7, 2026
We formulate a model of gravitationally induced decoherence for photons starting from Maxwell theory coupled to linearised gravity, expressed in terms of Ashtekar-Barbero variables and treated as an open quantum field theoretic system. In contrast to...
A Course on the Introduction to Quantum Software Engineering: Experience Report
Andriy Miranskyy·Feb 7, 2026
Quantum computing is increasingly practiced through programming, yet most educational offerings emphasize algorithmic or framework-level use rather than software engineering concerns such as testing, abstraction, tooling, and lifecycle management. Th...
Turning non-superconducting elements into superconductors by quantum confinement and proximity
Giovanni A. Ummarino, Alessio Zaccone·Feb 7, 2026
Elemental good metals, including noble metals (Cu, Ag, Au) and several $s$-block elements, do not exhibit superconductivity in bulk at ambient pressure, mainly due to weak electron-phonon coupling that cannot overcome Coulomb repulsion. Quantum confi...
BiBiEQ: Bivariate Bicycle Codes on Erasure Qubits
Ameya S. Bhave, Navnil Choudhury, Andrew Nemec +1 more·Feb 7, 2026
Erasure qubits reduce overhead in fault-tolerant quantum error correction (QEC) by converting dominant faults into detectable errors known as erasures. They have demonstrated notable improvements in thresholds and scaling in surface and Floquet code ...
Characterization of Autofluorescence in Optical Fibers for NV-based Sensing Applications
Stefan Johansson, Alexander Bukschat, Dennis Lönard +3 more·Feb 7, 2026
Optical fibers are crucial for guiding light in various sensing applications. Especially for quantum sensors such as the nitrogen-vacancy (NV) center in diamond, they enable light control and device miniaturization. However, fluorescence and scatteri...
Squeezing-enhanced dual-channel interference for ground-state cooling of a levitated micromagnet with low quality factor
Lei Chen, Zhe-qi Yang, Liang Bin +1 more·Feb 7, 2026
Cooling the center-of-mass (CM) motion of a macroscopic oscillator to its quantum ground state is a fundamental prerequisite for testing quantum mechanics at macroscopic scales. However, achieving this goal is currently hindered by the stringent requ...
Systematic Characterization of Transmon Qubit Stability with Thermal Cycling
Cong Li, Zhaohua Yang, Xinfang Zhang +3 more·Feb 7, 2026
The temporal stability and reproducibility of qubit parameters are critical for the long-term operation and maintenance of superconducting quantum processors. In this work, we present a comprehensive longitudinal characterization of 27 frequency-tuna...
Physical Analog Kolmogorov-Arnold Networks based on Reconfigurable Nonlinear-Processing Units
Manuel Escudero, Mohamadreza Zolfagharinejad, Sjoerd van den Belt +2 more·Feb 7, 2026
Kolmogorov-Arnold Networks (KANs) shift neural computation from linear layers to learnable nonlinear edge functions, but implementing these nonlinearities efficiently in hardware remains an open challenge. Here we introduce a physical analog KAN arch...