Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Quantifying the Relationship Between Strain and Bandgap in Thin Ga$_2$Se$_2$
Lottie L. Murray, Eric Herrmann, Igor Evangelista +3 more·Jan 13, 2026
We present a rigorous analysis that combines theory, simulation, and experimental measurements to quantify the relationship between strain and bandgap in two dimensional gallium selenide (Ga$_2$Se$_2$). Experimentally, we transfer thin Ga$_2$Se$_2$ f...
Breaking the Orthogonality Barrier in Quantum LDPC Codes
Kenta Kasai·Jan 13, 2026
Classical low-density parity-check (LDPC) codes are a widely deployed and well-established technology, forming the backbone of modern communication and storage systems. It is well known that, in this classical setting, increasing the girth of the Tan...
Local Magnetometry from Measurement-Induced Dissipation
Rishith Reddy, Parveen Kumar, Ankur Das·Jan 13, 2026
Magnetic phases are commonly identified through macroscopic magnetization, yet many ordered states, including antiferromagnets and altermagnets, possess a vanishing net moment despite distinct local spin structure. We show that such an order can be a...
Attosecond quantum optics
Mohamed Sennary, Javier Rivera-Dean, Yihe Wange +2 more·Jan 13, 2026
Modern quantum optics primarily operates in the quasistationary regime, isolated from the intrinsic timescales of ultrafast optical fields. Pushing these boundaries into the femtosecond and attosecond domains is a critical frontier. Here, we generate...
Phase-sensitive superposition of quantum states
Xiaotong Wang, Shunlong Luo, Yue Zhang·Jan 13, 2026
Although the principle of superposition lies at the heart of quantum mechanics and is the root of almost all quantum phenomena such as coherence and entanglement, its quantification, except for that related to the resource theory of coherence and int...
A dataflow programming framework for linear optical distributed quantum computing
Giovanni de Felice, Boldizsár Poór, Cole Comfort +4 more·Jan 13, 2026
Photonic systems offer a promising platform for interconnecting quantum processors and enabling scalable, networked architectures. Designing and verifying such architectures requires a unified formalism that integrates linear algebraic reasoning with...
Extending Qubit Coherence Time via Hybrid Dynamical Decoupling
Qi Yao, Jun Zhang, Wenxian Zhang +1 more·Jan 13, 2026
Dynamical decoupling (DD) and bath engineering are two parallel techniques employed to mitigate qubit decoherence resulting from their unavoidable coupling to the environment. Here, we present a hybrid DD approach that integrates pulsed DD with bath ...
Vacuum-dressed superconductivity in NbN observed in a high-$Q$ terahertz cavity
Hongjing Xu, Andrey Baydin, Qinyan Yi +8 more·Jan 13, 2026
Emerging theoretical frameworks suggest that physical properties of matter can be altered within an optical cavity by harnessing quantum vacuum electromagnetic fluctuations, even in the total absence of external driving fields. Among the most intrigu...
Learning Better Error Correction Codes with Hybrid Quantum-Assisted Machine Learning
Yariv Yanay·Jan 12, 2026
Quantum error correction is one of the fundamental building blocks of digital quantum computation. The Quantum Lego formalism has introduced a systematic way of constructing new stabilizer codes out of basic lego-like building blocks, which in previo...
Chiroptical effect induced by gravitational waves
Haorong Wu, Xilong Fan·Jan 12, 2026
We propose the gravitational analog of the chiroptical effect for the first time, demonstrating that gravitational waves (GWs) can induce a reversal of photon chirality through the exchange of angular momentum, namely the spin-2-gravitation chiroptic...
Local Scale Invariance in Quantum Theory: Experimental Predictions
Indrajit Sen, Matthew Leifer·Jan 12, 2026
We explore the experimental predictions of the local scale invariant, non-Hermitian pilot-wave (de Broglie-Bohm) formulation of quantum theory introduced in arXiv:2601.03567. We use Weyl's definition of gravitational radius of charge to obtain the fi...
Graphene-assisted resonant transmission and enhanced Goos-Hänchen shift in a frustrated total internal reflection configuration
Yi Chen, Yue Ban, Qi-Biao Zhu +1 more·Jan 11, 2026
Graphene-assisted resonant transmission and enhanced Goos-Hänchen shift are investigated in a two-prism frustrated-total-internal-reflection configuration. Due to the excitation of surface plasmons induced by graphene in low terahertz frequency range...
Counter-diabatic driving for fast spin control in a two-electron double quantum dot
Yue Ban, Xi Chen·Jan 11, 2026
The techniques of shortcuts to adiabaticity have been proposed to accelerate the "slow" adiabatic processes in various quantum systems with the applications in quantum information processing. In this paper, we study the counter-diabatic driving for f...
Cancelling second order frequency shifts in Ge hole spin qubits via bichromatic control
Xiangjun Tan, Zhanning Wang, Wenkai Bai +1 more·Jan 11, 2026
Germanium quantum dot hole spin qubits are compatible with fully electrical control and are progressing toward multi-qubit operations. However, their coherence is limited by charge noise and driving field induced frequency shifts, and the resulting e...
Magnetic levitation and spatial superposition of a nanodiamond with a current-carrying chip
Qian Xiang, Shafaq Gulzar Elahi, Andrew Geraci +2 more·Jan 10, 2026
We propose a current-carrying-chip scheme for generating spatial quantum superpositions using a levitating nanodiamond with a built-in nitrogen-vacancy (NV) centre defect. Our setup is quite versatile and we aim to create the superposition for a mass...
Breaking the Exponential: Decoherence-Driven Power-Law Spontaneous Emission in Waveguide Quantum Electrodynamics
Stefano Longhi·Jan 9, 2026
We investigate the spontaneous emission of a two-level system coupled to a photonic waveguide, showing that dynamical dephasing in the photon modes profoundly alters the decay law. In the absence of dephasing, the emitter displays conventional expone...
Optimally driving multi-photon transitions in the perturbative single-mode regime
Frieder Lindel, Stefan Yoshi Buhmann, Andreas Buchleitner +1 more·Jan 9, 2026
The rate of $m$-photon transitions in matter, induced by an incident light field, depends on the field's $m$th order coherence function. Consequently, the coherence properties of the light field may be shaped to increase the rate of multi-photon tran...
Quantum Interference-Induced Bhattacharyya Distance
Mostafizur Rahaman Laskar·Jan 9, 2026
We propose a quantum distance measure between probability distributions encoded in quantum states based on the fragility of quantum interference under entangling evolution. The Quantum Interference-Induced Bhattacharyya Distance (QIBD) is defined thr...
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 ...
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...