Papers
Live trends in quantum computing research, updated daily from arXiv.
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Hardware platform mentions in abstracts — Photonic leads
Generalized product-form monogamy relations in multi-qubit systems
Wen Zhou, Zhong-Xi Shen, Hong-Xing Wu +2 more·Dec 6, 2025
Monogamy of entanglement essentially characterizes the entanglement distributions among the subsystems. Generally it is given by summation-form monogamy inequalities. In this paper, we present the product-form monogamy inequalities satisfied by the $...
Mitigating the Transition of SiV$^-$ in Diamond to an Optically Dark State
Manuel Rieger, Rubek Poudel, Tobias Waldmann +7 more·Dec 6, 2025
Negatively charged silicon vacancy centers in diamond (SiV$^-$) are promising for quantum photonic technologies. However, when subject to resonant optical excitation, they can inadvertently transfer into a zero-spin optically dark state. We show that...
Bound state in the continuum and multiple atom state transfer applications in a waveguide QED setup
Xiang Guo, Xiaojun Zhang, Mingzhu Weng +5 more·Dec 6, 2025
Bound states in the continuum (BICs) have been extensively exploited to enhance light--matter interactions in metamaterials, yet their emergence and utility in multi-atom waveguide platforms remain far less explored. Here we study atom--waveguide-dre...
Testing the weak equivalence principle for nonclassical matter with torsion balances
Roberto Onofrio, Alexander R. H. Smith, Lorenza Viola·Dec 6, 2025
We propose tests of the weak equivalence principle (WEP) using a torsion balance, in which superposition of energy eigenstates are created in a controllable way for the test masses. After general considerations on the significance of tests of the WEP...
Anubuddhi: A Multi-Agent AI System for Designing and Simulating Quantum Optics Experiments
S. K. Rithvik·Dec 6, 2025
We present Anubuddhi, a multi-agent AI system that designs and simulates quantum optics experiments from natural language prompts without requiring specialized programming knowledge. The system composes optical layouts by arranging components from a ...
Exploring the topology induced by non-Markovian Liouvillian exceptional points
Hao-Long Zhang, Yan Wang, Wen Ning +6 more·Dec 6, 2025
Non-Hermitian (NH) systems can display exotic topological phenomena without Hermitian counterparts, enabled by exceptional points (EPs). So far, investigations of NH topology have been restricted to EPs of the NH Hamiltonian, which governs the system...
Integrable construction of a two-dimensional lattice model with anisotropic Hubbard couplings
Ze Tao, Fujun Liu·Dec 6, 2025
By defining a graded global R-operator $\mathbb{R}_{ab}^{(2D,2S)}$ that couples free-fermion structures and incorporates anisotropic Hubbard interactions while satisfying the Yang--Baxter equation, we construct a strictly solvable two-dimensional lat...
Entanglement Witness Derived By Using Kolmogorov-Arnold Networks
Fatemeh Lajevardi, Azam Mani, Ali Fahim·Dec 6, 2025
We utilize Kolmogorov-Arnold Networks to design an interpretable model capable of detecting quantum entanglement within a set of nine-parameter two-qubit states. This network serves as an entanglement witness, achieving an accuracy of $94\%$ in disti...
Wigner-Husimi phase-space structure of quasi-exactly solvable sextic potential
Angelina N. Mendoza Tavera, Adrian M. Escobar Ruiz, Robin P. Sagar·Dec 6, 2025
In this study, we compare the Wigner function $W$, its modulus, and the Husimi distribution $H$ in a one-dimensional quantum system exhibiting a transition from a single-well to a double-well configuration, using the quasi-exactly solvable sextic osc...
Spin-photon Qubits for Scalable Quantum Network
Md Sakibul Islam, Kuldeep Singh, Yunhe Zhao +2 more·Dec 6, 2025
Solid-state quantum light sources offer a scalable pathway for interfacing stationary spin qubits with flying photonic qubits, forming the backbone of future quantum networks. Telecom-band spin-photonic qubits, operating in the 1260-1675 nm wavelengt...
Robust AC vector sensing at zero magnetic field with pentacene
Boning Li, Garrett Heller, Jungbae Yoon +6 more·Dec 6, 2025
Quantum sensors based on electronic spins have emerged as powerful probes of microwave-frequency fields. Among other solid-state platforms, spins in molecular crystals offer a range of advantages, from high spin density to functionalization via chemi...
Adiabaticity Crossover: From Anderson Localization to Planckian Diffusion
Tiange Xiang, Yubo Zhang, Joonas Keski-Rahkonen +2 more·Dec 6, 2025
We investigate electron transport in one dimension from the quantum-acoustic perspective, where the coherent-state representation of lattice vibrations results in a time-dependent deformation potential whose rate is set by the sound speed, fluctuatio...
Trade-offs between Quantum and Classical Resources in the Linear Combination of Unitaries
Kaito Wada, Hiroyuki Harada, Yasunari Suzuki +3 more·Dec 6, 2025
The randomized linear combination of unitaries (LCU) method with many applications to early fault-tolerant quantum computing algorithms has been proposed. This quantum algorithm computes the same expectation values as the original, fully coherent LCU...
Quantum Interior Point Methods: A Review of Developments and An Optimally Scaling Framework
Mohammadhossein Mohammadisiahroudi, Zeguan Wu, Pouya Sampourmahani +2 more·Dec 6, 2025
The growing demand for solving large-scale, data-intensive linear and conic optimization problems, particularly in applications such as artificial intelligence and machine learning, has highlighted the limitations of classical interior point methods ...
Highly robust logical qubit encoding in an ensemble of V-symmetrical qutrits
Luis Octavio Castaños-Cervantes, Manuel Calixto, Julio Guerrero·Dec 5, 2025
We propose using even and odd Schödinger cat states formed from coherent states of U(3) of an ensemble of qutrits with a symmetrical V-configuration (a qubit-disguised qutrit) to encode a logical qubit. These carefully engineered logical qubit states...
The State-Operator Clifford Compatibility: A Real Algebraic Framework for Quantum Information
Kagwe A. Muchane·Dec 5, 2025
We revisit the Pauli-Clifford connection to introduce a real, grade-preserving algebraic framework for $n$-qubit quantum computation based on the tensor product $C\ell_{2,0}(\mathbb{R})^{\otimes n}$. In this setting, the bivector $J = e_{12}$ satisfi...
Dispersion Engineering of Planar Sub-millimeter Wave Waveguides and Resonators with Low Radiation Loss
Furkan Sahbaz, Simeon I. Bogdanov·Dec 5, 2025
Mm-wave and THz superconducting circuits find numerous applications in areas ranging from quantum information and sensing to high-energy physics. Planar THz transmission lines and resonators are fabrication-friendly, compact, and scalable, and they c...
Deterministic and Universal Frequency-Bin Gate for High-Dimensional Quantum Technologies
Xin Chen·Dec 5, 2025
High-dimensional photonic systems access large Hilbert spaces for quantum information processing. They offer proven advantages in quantum computation, communication, and sensing. However, implementing scalable, low-loss unitary gates across many mode...
Polarons from first principles
Zhenbang Dai, Jon Lafuente-Bartolome, Feliciano Giustino·Dec 5, 2025
This article reviews recent theoretical developments in the ab initio study of polarons in materials. The polaron is an emergent quasiparticle that arises from the interaction between electrons and phonons in solids, and consists of an electron or a ...
MaxwellLink: A unified framework for self-consistent light-matter simulations
Xinwei Ji, Andres Felipe Bocanegra Vargas, Gang Meng +1 more·Dec 5, 2025
A major challenge in light-matter simulations is bridging the disparate time and length scales of electrodynamics and molecular dynamics. Current computational approaches often rely on heuristic approximations of either the electromagnetic (EM) or th...