Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Interaction-assisted topological pumping in few- and many-atom Rydberg arrays
Chenxi Huang, Tao Chen, Qian Liang +7 more·Dec 13, 2025
Topology can imbue lattice systems with special properties, notably the presence of robust eigenstates living at their boundary. Through dimensional reduction, the robust bulk band topology of, e.g., the integer quantum Hall system can be mapped onto...
Quantum Coherence Dispersion
Fernando Parisio·Dec 13, 2025
We investigate how quantum coherence can be distributed among the several off-diagonal elements of an arbitrary density matrix. An easily computable quantity that captures this variability notion is proposed and it is argued that it presents marked f...
Coulomb crystallization of xenon highly charged ions in a laser-cooled Ca+ matrix
Leonid Prokhorov, Aaron A. Smith, Mingyao Xu +17 more·Dec 13, 2025
We report on the sympathetic cooling and Coulomb crystallization of xenon highly charged ions (HCIs) with laser-cooled Ca$^+$ ions. The HCIs are produced in a compact electron beam ion trap, then charge selected, decelerated, and finally injected int...
Measurement as Sheafification: Context, Logic, and Truth after Quantum Mechanics
Partha Ghose·Dec 13, 2025
Quantum measurement is commonly posed as a dynamical tension between linear Schrödinger evolution and an ad hoc collapse rule. I argue that the deeper conflict is logical: quantum theory is inherently contextual, whereas the classical tradition presu...
Cavity Ring-down Spectroscopy with behavior of Hybrid Cavity Structures
Muhammad Junaid Khan, Rida Batool Sheraliyat·Dec 13, 2025
Cavity ring-down (CRD) spectroscopy represents a direct absorption technique of sample absorption measurement. Instead of measuring the amount of the absorbed light, this technique determines the rate at which light intensity decays inside an optical...
Experimental benchmark of the quantum-classical crossover in a spin ladder
Hironori Yamaguchi, Itsuki Shimamura, Akira Matsuo +4 more·Dec 13, 2025
We report a spin-(1/2, 5/2) three-leg ladder realized in a radical-Mn polymer, exhibiting an antiferromagnetic transition and magnetization curves accurately described by classical mean-field theory. Although the underlying spin model intrinsically s...
Searching for axion dark matter with magnetic resonance force microscopy
Elham Kashi, Muhammad Hani Zaheer, Ryan Petery +1 more·Dec 13, 2025
We propose a magnetic resonance force microscopy (MRFM) search for axion dark matter around 1 GHz. The experiment leverages the axion's derivative coupling to electrons, which induces an effective A.C. magnetic field on a sample of electron spins pol...
Perturbative Input-Output Theory of Floquet Cavity Magnonics and Magnon Energy Shifts
T. Aguiar, M. C. de Oliveira·Dec 13, 2025
We develop a perturbative input-output formalism to compute the reflectance and transmittance spectra of cavity magnonics systems subject to a Floquet modulation. The method exploits the strong hierarchy between the magnetic-dipole couplings transver...
On the Bogoliubov-Valatin transformation for fermionic Hamiltonians without a linear part
Davide Bonaretti·Dec 13, 2025
A self-contained treatment of the Bogoliubov-Valatin transformation for homogeneous fermionic Hamiltonians is presented. The aim is to provide a quick reference that may also serve as supplementary material for a graduate-level course, and that can b...
Symmetry Dilemmas in Quantum Computing for Chemistry: A Comprehensive Analysis
Ilias Magoulas, Muhan Zhang, Francesco A. Evangelista·Dec 13, 2025
Symmetry adaptation, universality, and gate efficiency are central but often competing requirements in quantum algorithms for electronic structure and many-body physics. For example, fully symmetry-adapted universal operator pools typically generate ...
Mage: Cracking Elliptic Curve Cryptography with Cross-Axis Transformers
Lily Erickson·Dec 13, 2025
With the advent of machine learning and quantum computing, the 21st century has gone from a place of relative algorithmic security, to one of speculative unease and possibly, cyber catastrophe. Modern algorithms like Elliptic Curve Cryptography (ECC)...
Leveraging Symmetry Merging in Pauli Propagation
Yanting Teng, Su Yeon Chang, Manuel S. Rudolph +1 more·Dec 12, 2025
We introduce a symmetry-adapted framework for simulating quantum dynamics based on Pauli propagation. When a quantum circuit possesses a symmetry, many Pauli strings evolve redundantly under actions of the symmetry group. We exploit this by merging P...
Kardar-Parisi-Zhang and glassy properties in 2D Anderson localization: eigenstates and wave packets
Noam Izem, Bertrand Georgeot, Jiangbin Gong +2 more·Dec 12, 2025
Despite decades of research, the universal nature of fluctuations in disordered quantum systems remains poorly understood. Here, we present extensive numerical evidence that fluctuations in two-dimensional (2D) Anderson localization belongs to the (1...
The PPKN Gate: An Optimal 1-Toffoli Input-Preserving Full Adder for Quantum Arithmetic
G. Papakonstantinou·Dec 12, 2025
Efficient arithmetic operations are a prerequisite for practical quantum computing. Optimization efforts focus on two primary metrics: Quantum Cost (QC), determined by the number of non-linear gates, and Logical Depth, which defines the execution spe...
Proof of Spin-Statistics Theorem in Quantum Mechanics of Identical Particles
Takafumi Kita·Dec 12, 2025
A nonrelativistic proof of the spin-statistics theorem is given in terms of the field operators satisfying commutation and anticommutation relations, which are introduced here in the coordinate space as a means to build the permutation symmetry into ...
TreeVQA: A Tree-Structured Execution Framework for Shot Reduction in Variational Quantum Algorithms
Yuewen Hou, Dhanvi Bharadwaj, Gokul Subramanian Ravi·Dec 12, 2025
Variational Quantum Algorithms (VQAs) are promising for near- and intermediate-term quantum computing, but their execution cost is substantial. Each task requires many iterations and numerous circuits per iteration, and real-world applications often ...
Quantum-enhanced biosensing enables earlier detection of bacterial growth
Rayssa B. de Andrade, Anne Egholm Høgh, Gaetana Spedalieri +4 more·Dec 12, 2025
Rapid detection of bacterial growth is crucial in clinical, food safety, and environmental contexts, yet conventional optical methods are limited by noise and require hours of incubation. Here, we present the first experimental demonstration of a qua...
Cavity Mediated Two-Qubit Gate: Tuning to Optimal Performance with NISQ Era Quantum Simulations
Shreekanth S. Yuvarajan, Vincent Iglesias-Cardinale, David Hucul +1 more·Dec 12, 2025
A variety of photon-mediated operations are critical to the realization of scalable quantum information processing platforms and their accurate characterization is essential for the identification of optimal regimes and their experimental realization...
Convergence of the Cumulant Expansion and Polynomial-Time Algorithm for Weakly Interacting Fermions
Hongrui Chen, Cambyse Rouzé, Jielun Chen +6 more·Dec 12, 2025
We propose a randomized algorithm to compute the log-partition function of weakly interacting fermions with polynomial runtime in both the system size and precision. Although weakly interacting fermionic systems are considered tractable for many comp...
Electron-positron pair creation induced by multi-pulse train of electric fields: effect of randomness in time-delay
Deepak Sah, Manoranjan P. Singh·Dec 12, 2025
We investigate the creation of electron-positron pairs (EPPs) in a sequence of alternating-sign, time-dependent electric field pulse trains by solving the quantum Vlasov equations. Specifically, we focus on Sauter-like pulse trains with random time d...