Papers
Live trends in quantum computing research, updated daily from arXiv.
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Zeeman effect in hydrogen treated in classical physics with classical zero-point radiation
Timothy H. Boyer·Mar 13, 2026
The Zeeman effect for the low resonant energy states of hydrogen is treated with classical electrodynamics including classical zero-point radiation. The electron is regarded as a classical charged particle in a Coulomb potential. The "space quantizat...
Relativistic hydrogen in classical electrodynamics with classical zero-point radiation
Timothy H. Boyer·Mar 13, 2026
Classical electrodynamics including classical electromagnetic zero-point radiation leads to a ground state and resonant excited states for a charged particle in a Coulomb potential. These resonant states correspond to integer values of the action var...
Fast Arbitrary Qutrit Gates for NV Centers in the Low-Field Regime
Alberto López-García, Marcel Morillas-Rozas, Alberto Mayorgas +1 more·Mar 13, 2026
The ground state of the negatively charged NV center forms a spin-1 manifold providing a versatile platform for sensing and information processing. Here we present a scheme for implementing fast arbitrary qutrit gates in the low-field regime using mo...
Classical linear oscillator in classical electrodynamics with classical zero-point radiation
Timothy H. Boyer·Mar 13, 2026
A classical linear oscillator is treated in the small amplitude limit so that it will be approximately relativistic. The oscillator involves a charge particle in a linear potential in classical zero-point radiation. It is found that the ground state ...
Non-existence of stabilizer absolutely maximally entangled states across infinitely many configurations
Hyunho Cha·Mar 13, 2026
We prove a general reduction theorem for stabilizer absolutely maximally entangled states in composite local dimension. If a stabilizer $\mathrm{AME}(n,D)$ state exists and $D=\prod_{i=1}^m q_i$ is the prime-power factorization of $D$, then for every...
Inaccurate (weak) measurements classical and quantum
D. Sokolovski, D. Alonso, S. Brouard·Mar 13, 2026
We consider highly inaccurate measurements made on classical stochastic and quantum systems. In the quantum case such a \e{weak} measurement preserves coherence between the system's alternatives. We demonstrate that in both cases the information abou...
Asymptotically Optimal Quantum Circuits for Comparators and Incrementers
Vivien Vandaele·Mar 13, 2026
We present quantum circuits for comparison and increment operations that achieve an asymptotically optimal gate count of $Θ(n)$ and depth of $Θ(\log n)$ over the Clifford+Toffoli gate set, while using a provably minimal number of qubits. We extend th...
Nonlocal continuous-variable quantum nondemolition gates by optical connections
Michele N. Notarnicola, Radim Filip·Mar 13, 2026
Nonlocal quantum gates, coupling quantum systems located at distance, are crucial for distributed quantum computing. High-capacity optical noiseless connections between these quantum systems are essential for transmitting large amounts of information...
Auger Spectroscopy via Generative Quantum Eigensolver: A Quantum Approach to Molecular Excitations
Kimberlee Keithley, Shunsuke Yamamoto, Ryota Kenmoku +16 more·Mar 13, 2026
Auger electron spectroscopy, a way of characterizing electronic structure through core-level decay processes, is widely used in materials characterization; however direct calculation from molecular geometry requires accurate treatment of many excited...
Deep-Learning-Designed AlGaAs Interface Linking Trapped Ions to Telecom Quantum Networks
I. P. De Simeone, G. Maltese, V. Cambier +5 more·Mar 13, 2026
The realization of a scalable quantum internet requires efficient light-matter interfaces that map stationary qubits onto photonic carriers for long-distance transmission. A central challenge is the generation of entangled photons simultaneously comp...
A Directly Modulated Laser Platform for High-Dimensional Quantum Key Distribution
Yang Zhou, Xing-Yu Zhou, Shu-Fan Wu +3 more·Mar 13, 2026
High-dimensional quantum key distribution (HD-QKD) offers a promising approach to enhance secret key rates beyond conventional binary-encoded QKD, addressing the growing demand for secure data transmission. However, the practical application of most ...
Quantum CDMA-based Continuous Variable Quantum Key Distribution using Chaotic Phase Shifters
Shahnoor Ali, Neel Kanth Kundu, Sourav Chatterjee·Mar 13, 2026
We present a quantum code-division multiple-access (q-CDMA) framework for multiuser continuous-variable quantum key distribution (CV-QKD) over a shared quantum channel. The proposed architecture employs chaotic phase shifters to encode and decode qua...
Hardy's Paradox for Yu-Oh Set Constructed by Logically Contextual Quantum States
Chang He, Yongjun Wang, Baoshan Wang +2 more·Mar 13, 2026
Quantum contextuality is a fundamental nonclassical property of quantum systems, regarded as a key resource that demonstrates the computational and informational advantages of quantum over classical systems. Our present work aims to construct Hardy's...
Reaction-Level Consistency within the Variational Quantum Eigensolver: Homodesmotic Ring Strain Energies of Cyclic Hydrocarbons
L. Roy, M. Sarkar, M. Tewari +2 more·Mar 13, 2026
Simulation of chemical reactions on quantum computing platforms using quantum classical hybrid algorithms such as the Variational Quantum Eigensolver (VQE) is challenged by the need for a reaction consistent treatment of electron correlation in react...
V2Rho-FNO: Fourier Neural Operator for Electronic Density Prediction
Yingdi Jin, Xinming Qin, Ruichen Liu +3 more·Mar 13, 2026
Density functional theory (DFT) is a cornerstone of computational chemistry and materials science, but its computational cost limits its use in large-scale and high-throughput applications. While machine learning has accelerated energy prediction for...
Fisher information based lower bounds on the cost of quantum phase estimation
Ryosuke Kimura, Kosuke Mitarai·Mar 13, 2026
Quantum phase estimation (QPE) is a cornerstone of quantum algorithms designed to estimate the eigenvalues of a unitary operator. QPE is typically implemented through two paradigms with distinct circuit structures: quantum Fourier transform-based QPE...
Efficient equivalence checking of Clifford-U circuits with shared single-qubit unitaries
Daisuke Sakamoto, Soshun Naito, Yusei Mori +1 more·Mar 13, 2026
Quantum circuit equivalence checking asks whether two circuits implement the same unitary. It guarantees compiler correctness and safe optimization, yet most existing approaches scale exponentially with the number of qubits or the circuit depth, or a...
Optimal Continuous- to Discrete-Variable Bipartite Entanglement Conversion
Pak-Tik Fong, Ruchir Tullu, Hoi-Kwan Lau·Mar 13, 2026
Discrete-variable (DV) entanglement is crucial for numerous quantum applications, yet its deterministic generation in many bosonic systems remains experimentally challenging. In contrast, continuous-variable (CV) entanglement can be produced efficien...
Probing many-body localization crossover in quasiperiodic Floquet circuits on a quantum processor
Kazuma Nagao, Tomonori Shirakawa, Rongyang Sun +2 more·Mar 13, 2026
Many-body localization (MBL) provides a mechanism by which interacting quantum systems evade thermalization, leading to persistent memory of initial conditions and slow entanglement growth. Probing these dynamical signatures in large systems and at l...
Advanced Quantum Annealing for the Bi-Objective Traveling Thief Problem: An $\varepsilon$-Constraint-based Approach
Nguyen Hoang Viet, Nguyen Xuan Tung, Trinh Van Chien +1 more·Mar 13, 2026
This paper addresses the Bi-Objective Traveling Thief Problem (BI-TTP), a challenging multi-objective optimization problem that requires the simultaneous optimization of travel cost and item profit. Conventional methods for the BI-TTP often face seve...