🔬 physics

Programmable spectral symmetries in an anisotropic quantum Rabi simulator

This paper demonstrates a programmable superconducting quantum simulator capable of independently controlling the anisotropic couplings and bias of the quantum Rabi model, thereby revealing new spectral symmetries, ground-state parity switches, and nonperturbative dynamics that are inaccessible in the isotropic limit.

Yu Liu, Jia-Cheng Song, Ming-Chuan Wang, Ke-Xiong Yan, Yang He, Yun-Hao Shi, Wei-Ping Yuan, Cheng-Lin Deng, Li Li, Zhen- (…)2026-06-30
🔬 physics

Windowed Finite-Size Scaling of Reference-State Information Backflow in Disordered Quantum Reservoirs

This paper introduces a windowed finite-size scaling diagnostic to analyze reference-state information backflow in disordered quantum reservoirs, revealing that finite-reservoir Markovianization is window-dependent and characterized by a disorder-induced transition near ωc0.41\omega_c \approx 0.41 that distinguishes boundary-dominated small reservoirs from the scaling behavior of larger extended systems.

Mitchell Smith2026-06-30
🔬 physics

Actively Tunable Sb2S3 Metasurface with Polarization-insensitive Quasi-bound Flat-Band in the Continuum for Enhancing Third-harmonic Generation

This paper presents a hybrid Sb2S3-Si metasurface that leverages polarization-insensitive quasi-bound states in the continuum and a local flat-band to achieve robust, dynamically tunable enhancement of third-harmonic generation across the near-infrared spectrum.

Ruhao Pan, Siwen Qian, Yongliang Li, Junhao Tan, Zhenggang Pan, Bo Wang, Jingbo Sun, Chuanbao Liu, Junjie Li, Ji Zhou, Y (…)2026-06-30
🔬 physics

Global Electric Field Generated by Earth’s Rotation in the Axisymmetric Geomagnetic Field: “Geophysical Batteries” in Chukchi and Seward  Peninsulas

This paper demonstrates that Earth's rotation within its axisymmetric geomagnetic field generates global electric fields that, when interacting with ocean–land conductivity contrasts, create natural "geophysical batteries" with estimated terminal voltages of 10–100 V, particularly concentrated near the Chukchi and Seward peninsulas.

Yury N Golubev2026-06-30
🔬 physics

Excitonic nonlinear optical response of conventional and inverted CdSe/ZnS cylindrical core/shell quantum dots under dual-interface dielectric confinement: saturable absorption, photobleaching, and dielectric engineering

This paper presents a rigorous excitonic theoretical framework incorporating Coulomb correlation, dual-interface dielectric self-polarization, local-field corrections, and temperature-dependent dephasing to demonstrate that inverting the core/shell geometry of CdSe/ZnS cylindrical quantum dots significantly enhances third-order nonlinear optical responses, offering optimized design guidelines for oxide-embedded photonic devices.

Lakhdar Sek2026-06-29