Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Proximity driven photon-tunneling in chiral quantum hybrid systems
Aryan Pratap Srivastava, Moulik Deviprasad Ketkar, Kuldeep Kumar Shrivastava +3 more·Nov 25, 2025
We investigate photon tunneling in a pair of coupled inverted circular split-ring microwave resonators with four discrete chiral orientations. By varying the spacing between the resonators, we observe strong modulation of the transmission spectra, in...
Fault-Tolerant Non-Clifford GKP Gates using Polynomial Phase Gates and On-Demand Noise Biasing
Minh T. P. Nguyen, Mackenzie H. Shaw·Nov 25, 2025
The Gottesman-Kitaev-Preskill (GKP) error correcting code uses a bosonic mode to encode a logical qubit, and has the attractive property that its logical Clifford gates can be implemented using Gaussian unitary gates. In contrast, a direct unitary im...
Realizing Universal Non-Markovian Noise Suppression
Hongfeng Liu, Zizhao Han, Xinfang Nie +2 more·Nov 25, 2025
Non-Markovian noise, arising from environmental memory effects, is the most general and challenging form of noise in quantum computing, and is typically difficult to characterize and suppress. Here, we analyze and experimentally demonstrate a non-Mar...
Quantum measurement retrodiction and entropic uncertainty relations
Jiaxi Kuang, Kensei Torii, Francesco Buscemi·Nov 25, 2025
We study quantum measurement retrodiction using the principle of minimum change. For quantum-to-classical measurement channels, we show that all standard quantum divergences select the same retrodictive update, yielding a unique and divergence-indepe...
$\mathcal{PT}$-assisted control of Goos-Hänchen shift in cavity magnomechanics
Shah Fahad, Gao Xianlong·Nov 25, 2025
We propose a scheme to manipulate the Goos-Hänchen shift (GHS) of a reflected probe field in a non-Hermitian cavity magnomechanical system. The platform consists of a yttrium-iron-garnet sphere coupled to a microwave cavity, where a strong microwave ...
Disentangling Kitaev Quantum Spin Liquid
Xiang Li, Xiangjian Qian, Mingpu Qin·Nov 25, 2025
In this work, we investigate the Kitaev honeycomb model employing the recently developed Clifford Circuits Augmented Matrix Product States (CAMPS) method. While the model in the gapped phase is known to reduce to the toric code model - whose ground s...
Escaping AB caging via Floquet engineering: photo-induced long-range interference in an all-band-flat model
Aamna Ahmed, Mónica Benito, Beatriz Pérez-González·Nov 25, 2025
Flat-band lattices hosting compact localized states are highly sensitive to external modulation, and the tailored design of a perturbation to imprint specific features becomes relevant. Here we show that periodic driving in the high-frequency regime ...
A Unified Complexity-Algorithm Account of Constant-Round QAOA Expectation Computation
Jingheng Wang, Shengminjie Chen, Xiaoming Sun +1 more·Nov 25, 2025
The Quantum Approximate Optimization Algorithm (QAOA) is widely studied for combinatorial optimization and has achieved significant advances both in theoretical guarantees and practical performance, yet for general combinatorial optimization problems...
The rationality of radical pair mechanism in real biological systems
Xiaoyu Chen, Haibin Liu, Jianming Cai·Nov 25, 2025
The radical pair mechanism (RPM) in the chemical magnetic compass model is considered to be one of the most promising candidates for the avian magnetic navigation, and quantum needle phenomenon further boosts the navigation precision to a new high le...
Microwave spectroscopy of few-carrier states in bilayer graphene quantum dots
Max J. Ruckriegel, Christoph Adam, Rebecca Bolt +8 more·Nov 25, 2025
Bilayer graphene is a maturing material platform for gate-defined quantum dots that hosts long-lived spin and valley states. Implementing solid-state qubits in bilayer graphene requires a fundamental understanding of such confined electronic systems....
Attosecond momentum-resolved resonant inelastic x-ray scattering for imaging coupled electron-hole dynamics
Maksim Radionov, Daria Popova-Gorelova·Nov 25, 2025
Improving our understanding of electron dynamics is essential for advancing energy transfer, optoelectronics, light harvesting systems and quantum computing. Recent developments in attosecond x-ray sources provide the fundamental possibility of obser...
Is the large uncertainty of $δ_{CP}$ fundamentally encoded in the neutrino quantum state?
Michela Ignoti, Claudia Frugiuele, Matteo G. A. Paris +1 more·Nov 25, 2025
The precise measurement of the leptonic CP-violating phase $δ_{CP}$ remains one of the major open challenges in neutrino physics, as current experiments achieve only very limited accuracy. We address this issue through the lens of quantum estimation ...
Plug-n-Play Three Pulse Twin Field QKD
Anagha Gayathri, Aryan Bhardwaj, Nilesh Sharma +3 more·Nov 25, 2025
We present the experimental implementation of a three-time-bin phase-encoded Twin-Field Quantum Key Distribution (TF-QKD) protocol using a Sagnac-based star-topology plug-and-play architecture. The proposed encoding method leverages the relative phas...
All-Optical Brillouin Random number Generator
A. R. Mukhamedyanov, E. S. Andrianov, A. A. Zyablovsky·Nov 25, 2025
We propose a model of binary random number generator (RNG) based on a Brillouin optomechanical system. The device uses a hard excitation mode in a Brillouin optomechanical system, where thermal noise induces spontaneous transitions between two stable...
The Cumulants Expansion Approach: The Good, The Bad and The Ugly
Johannes Kerber, Helmut Ritsch, Laurin Ostermann·Nov 25, 2025
The configuration space, i.e. the Hilbert space, of compound quantum systems grows exponentially with the number of its subsystems: its dimensionality is given by the product of the dimensions of its constituents. Therefore a full quantum treatment i...
Superconducting Parametric Amplifiers: Resonator Design and Role in Qubit Readout
Babak Mohammadian·Nov 25, 2025
Superconducting parametric amplifiers (SPAs) are critical components for ultralow-noise qubit readout in quantum computing, addressing the critical challenge of amplifying weak quantum signals without introducing noise that degrades coherence and com...
Scaling Quantum Networks via Phase-Stable Vacuum Beam Guide: Architectural Blueprint and Benchmark
Yuexun Huang, Delaney Smith, Pei Zeng +4 more·Nov 25, 2025
Scaling quantum networks to continental distances requires physical infrastructure capable of overcoming both exponential attenuation and severe phase decoherence. While the concept of vacuum beam guide (VBG) has recently emerged as a promising low-l...
Adaptable Route to Fast Coherent State Transport via Bang-Bang-Bang Protocols
Ya-Tang Yu, Hsin-Lien Lee, Ting Hsu +3 more·Nov 25, 2025
Fast coherent state transport is essential to quantum computation and quantum information processing. While an adiabatic transport of atomic qubits guarantees a high fidelity of the state preparation, it requires a long timescale that defies efficien...
Real and Fourier space readout methods: Comparison of complexity and applications to CFD problems
Xinchi Huang, Hirofumi Nishi, Yoshifumi Kawada +2 more·Nov 25, 2025
Quantum computing is a promising technology that accelerates the partial differential equations solver for practical problems. The reconstruction of solutions (i.e., the readout of quantum states) remains a crucial problem, although numerous efficien...
Kernelized Decoded Quantum Interferometry
Fumin Wang·Nov 25, 2025
Decoded Quantum Interferometry (DQI) promises superpolynomial speedups for structured optimization; however, its practical realization is often hindered by significant sensitivity to hardware noise and spectral dispersion. To bridge this gap, we intr...