Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Self-Reflection in a Moving Mirror
Michael R. R. Good, Eric V. Linder·Mar 30, 2026
We present an analytic flat-spacetime accelerating boundary analog of Hawking-type emission that possesses infinite asymptotic acceleration (and radial acceleration in the black hole analog) but finite total radiated energy (and zero surface gravity ...
Resonance fluorescence of an artificial atom with a time-delayed coherent feedback
Ching-Yeh Chen, Gavin Crowder, Zheng-Qi Niu +7 more·Mar 30, 2026
The model of light-matter interaction in quantum electrodynamics typically relies on the Markovian approximation, which assumes that the system's future evolution depends solely on its current state, effectively treating it as a ``memoryless" process...
Graphitic-C3N4/TiO2(B) S-scheme Heterojunctions for Efficient Photocatalytic H2 Production and Organic Pollution Degradation
Xiaoyi Zhou, Min Zhang, Qiushi Wang +3 more·Mar 30, 2026
Achieving both broad solar-spectrum absorption and strong redox capability is critical for semiconductor photocatalysts in environmental remediation and energy conversion. Herein, an S-scheme heterojunction photocatalyst is constructed by coupling Ti...
Hybrid QPE-Ansatz Strategy for Reliable Excited-State Variational Quantum Deflation
Young Kyun Ahn, Young Min Rhee·Mar 30, 2026
We introduce a spin $z$-component ($S_{z}$) conserving symmetry-preserving ansatz and a shallow quantum phase estimation (QPE) routine of spin $x$ ($S_x$), and combine them into a spin-filtering variational quantum deflation (sfVQD) scheme for noisy ...
Contextuality of quantum non-demolition measurement via state discrimination
Min Namkung, Ilhwan Kim, Hyang-Tag Lim·Mar 30, 2026
Quantum non-demolition measurements facilitate various quantum technologies, including quantum communication. Notably, their operational structure can be replicated by a classical model--referred to as a noncontextual model--making it crucial to iden...
Study of Post Quantum status of Widely Used Protocols
Tushin Mallick, Ashish Kundu, R. Kompella·Mar 30, 2026
The advent of quantum computing poses significant threats to classical public-key cryptographic primitives such as RSA and elliptic-curve cryptography. As many critical network and security protocols depend on these primitives for key exchange and au...
High PDMR contrast in single NV centres and related photocurrent properties
Michael Petrov, Boo Carmans, Josef Soucek +4 more·Mar 29, 2026
This paper aims to extend the understanding of the mechanism of photo-electrical detection of magnetic resonance (PDMR) in nitrogen-vacancy (NV) centres. This technique is particularly important for development of solid-state quantum computing platfo...
Quantum Robust Control using Geometric Optimal Control Theory
Francesca Albertini, Domenico D'Alessandro·Mar 29, 2026
In this paper, we demonstrate an approach to quantum robust control based on the tools of geometric optimal control. The central objects of interest are the sensitivity functions defined as the coefficients in the Taylor expansion of the trajectory w...
Enhancing Spin Coherence of Optically-Addressed Molecular Qubit by Nuclear Spin Hyperpolarization
Boning Li, Patrick Hautle, Duhan Zhang +6 more·Mar 29, 2026
Optically addressable molecular triplet spins provide a chemically tunable platform for quantum application, but their coherence is often limited by interactions with surrounding spin baths. Here we demonstrate controlled suppression of nuclear-bath-...
Exponentially cheaper coherent phase estimation via uncontrolled unitaries
Mirko Amico·Mar 29, 2026
Phase kickback is a fundamental primitive that is used in many quantum algorithms, such as quantum phase estimation. Here we observe that by using information about the controlled unitary, we can replace the controlled unitary with an uncontrolled on...
A Resource-Aligned Hybrid Quantum-Classical Framework for Multimodal Face Anti-Spoofing
Wanqi Sun, Jungang Xu, Chenghua Duan·Mar 29, 2026
Embedding high-dimensional data into resource-limited quantum devices remains a significant challenge for practical quantum machine learning. In multimodal face anti-spoofing, while linear compression methods such as principal component analysis can ...
Q-Bridge: Code Translation for Quantum Machine Learning via LLMs
Runjia Zeng, Priyabrata Senapati, Ruixiang Tang +2 more·Mar 29, 2026
Large language models have recently shown potential in bridging the gap between classical machine learning and quantum machine learning. However, the lack of standardized, high-quality datasets and robust translation frameworks limits progress in thi...
Ground-State Selection by Pure Energy Relaxation in Polariton Condensates
D. A. Saltykova, A. V. Yulin, I. A. Shelykh·Mar 29, 2026
We study nonequilibrium mode selection in dissipative exciton-polariton condensates incoherently pumped through an excitonic reservoir in the presence of pure energy relaxation. For a confined system in which a vortex mode is selected at threshold, w...
Competing interlayer charge order and quantum monopole reorganization in bilayer Kagome spin ice via quantum annealing
Kumar Ghosh·Mar 29, 2026
Frustrated magnets host emergent magnetic monopoles whose confinement and ordering are governed by two experimental handles that existing platforms cannot vary independently. We realize a bilayer Kagome spin ice across $1{,}536$ logical spins on a D-...
Complementarity Beyond Definite Causal Order
Mohd Asad Siddiqui, Md Qutubuddin, Tabish Qureshi·Mar 29, 2026
Wave--particle duality is a cornerstone of quantum mechanics, traditionally formulated under definite causal order. We investigate how complementarity is modified when the temporal order of operations is coherently superposed, as in the quantum switc...
Benchmarking simulation of hybrid decoding scheme for parity-encoded spin systems
Yoshihiro Nambu·Mar 29, 2026
This paper presents classical benchmark simulations of a practical hybrid decoding scheme for parity-encoded spin systems, which is well-suited to the development of quantum annealing devices based on on-chip superconducting technology. We compared t...
Quantum Coherence and Giant Enhancement of Positron Channeling Radiation
Michael Shatnev·Mar 29, 2026
We present a quantum-mechanical calculation of positron channeling radiation in a planar harmonic potential, explicitly accounting for the interference between transition amplitudes from different transverse energy levels. Because the planar channel ...
Digital Predistortion of Optical Fields for Fast and High-Fidelity Entangling Gates in Trapped-Ion Qubits
Jovan Markov, Yotam Shapira, Ayelet Hasson +4 more·Mar 29, 2026
High-fidelity quantum gates require precise classical control signals, yet the analog hardware delivering these signals introduces nonlinear distortions that degrade gate performance. We demonstrate digital predistortion of an acousto-optic modulator...
A Helmholtz Equation for Surface Plasmon Polaritons on Curved Interfaces: Controlling Cooperativity with Geometric Potentials
Florian Bönsel, Flore K. Kunst·Mar 29, 2026
Surface plasmon polaritons propagating along curved metal-dielectric interfaces experience geometry-induced modifications absent on flat surfaces. In this work, we derive a covariant, effective two-dimensional wave equation for the transverse magneti...
Cavity-QED Transducer of Gravitons
Fateme Shojaei Arani, Brahim Lamine, Jiro Soda·Mar 29, 2026
We develop a quantum description of the resonant interaction between electromagnetic (EM) and gravitational waves (GW). We first show that Lorentz invariance together with polarization selection rules forbids any photon-graviton mixing in free space....