Anharmonicity and Charge-Noise Sensitivity of Fraunhofer Qubit

This paper presents a theoretical framework for a flux-tunable "Fraunhofer qubit" based on wide ballistic Josephson junctions, demonstrating that magnetic flux can transform the potential landscape to significantly enhance anharmonicity while maintaining charge-noise protection, thereby offering an optimized operating point for hybrid superconducting circuits.

Longyu Ma, Tony Liu, Javad Shabani, Kasra Sardashti, Vladimir E. Manucharyan, Maxim G. VavilovTue, 10 Ma🔬 cond-mat.mes-hall

Color Centers and Hyperbolic Phonon Polaritons in Hexagonal Boron Nitride: A New Platform for Quantum Optics

This paper establishes a cavity-QED framework connecting hexagonal boron nitride color centers with hyperbolic phonon polaritons, demonstrating how single quantum emitters can serve as on-chip sources to generate, control, and mediate long-range interactions of confined mid-infrared polaritons for advanced quantum optics applications.

Jie-Cheng Feng, Johannes Eberle, Sambuddha Chattopadhyay, Johannes Knörzer, Eugene Demler, Ataç \.Imamo\u{g}luTue, 10 Ma⚛️ quant-ph

Microwave response of electrically driven spins in a three-qubit quantum processor

This study demonstrates that electrically driven Loss-DiVincenzo spin qubits exhibit a linear Rabi frequency scaling with microwave drive amplitude even under simultaneous multi-qubit driving, thereby refuting the notion that previously observed nonlinearities are a general characteristic of such systems.

Tanner M. Janda, Heun Mo Yoo, Connor Nasseraddin, Adam R. Mills, Zhaoyi Joy Zheng, Jason R. PettaTue, 10 Ma⚛️ quant-ph

Resonances in light scattering from nonequilibrium dipoles pairs

This paper demonstrates that light scattering from pairs of point-like dipoles exhibits exact resonances when the dipoles violate the optical theorem (indicating nonequilibrium or active conditions), leading to potentially infinite scattering amplitudes, while similar but finite resonances in equilibrium systems can still yield significant amplification factors.

Vanik E. Mkrtchian, Armen E. Allahverdyan, Mikayel KhanbekyanTue, 10 Ma⚛️ quant-ph

Geometry-Controlled Excitonic Emission Engineering in Monolayer MoS2 Using Plasmonic Hollow Nanocavities

This study numerically demonstrates that vertically oriented hollow gold nanocavities coupled to monolayer MoS2 can spectrally tune and significantly enhance A and B excitonic emission through geometry-controlled plasmon resonance, achieving up to 144-fold photoluminescence increases and enabling precise engineering of excitonic peak ratios for advanced valleytronic and sensing applications.

Abdullah Efe Yildiz, Emre Ozan PolatTue, 10 Ma⚛️ quant-ph

Hybrid light-matter excitations and spontaneous time-reversal symmetry breaking in two-dimensional Josephson Junctions

This paper investigates the inductive coupling between a quantum LC resonator and a graphene-based Josephson junction, revealing that the system's current-phase relation can exhibit spontaneous time-reversal symmetry breaking and predicting the low-energy spectrum of hybridized light-matter excitations.

V. Varrica, G. Falci, E. Paladino, F. M. D. PellegrinoTue, 10 Ma⚛️ quant-ph

For molecular polaritons, disorder and phonon timescales control the activation of dark states in the thermodynamic limit

This study employs a numerically exact hybrid MPS-HEOM approach to demonstrate that in disordered molecular polariton systems, phonon timescales and dynamic disorder govern the activation of dark states and determine the critical system size (NTN_T) required to reach the thermodynamic limit by suppressing collective light-matter dynamics.

Tianchu Li, Pranay Venkatesh, Qiang Shi, Andrés Montoya-CastilloTue, 10 Ma⚛️ quant-ph

Efficient construction of time-invariant process tensors for simulating high-dimensional non-Markovian open quantum systems

This paper introduces a modified infinite time-evolving block decimation (iTEBD) algorithm that constructs time-invariant process tensors with significantly improved computational scaling (O(d4)\mathcal{O}(d^4)) and reduced memory requirements, enabling the exact simulation of long-time, non-Markovian dynamics in high-dimensional open quantum systems previously considered numerically intractable.

Émile Cochin, Jonathan Keeling, Brendon W. Lovett, Alex W. ChinTue, 10 Ma⚛️ quant-ph

Fast and Slow Sound Excitations in Nematic Aerogel in superfluid 3He

This paper theoretically explains the rapid growth and subsequent plateau of a specific sound wave frequency observed in nematic aerogel-filled superfluid 3He by modeling the aerogel's elastic properties and demonstrating how the hybridization of isotropic first sound, anisotropic second sound, fourth sound, and standard elastic modes leads to these distinct velocity behaviors near the polar phase transition.

A. M. BratkovskyThu, 12 Ma🔬 cond-mat.mes-hall

Bridging Microscopic Constructions and Continuum Topological Field Theory of Three-Dimensional Non-Abelian Topological Order

This paper systematically bridges the gap between continuum topological field theory and microscopic lattice constructions of three-dimensional non-Abelian topological orders by explicitly deriving fusion and shrinking rules for the D4\mathbb{D}_4 quantum double model, thereby establishing a precise correspondence with a BFBF field theory with an AABAAB twist and resolving long-standing skepticism regarding its microscopic realizability.

Yizhou Huang, Zhi-Feng Zhang, Qing-Rui Wang, Peng YeThu, 12 Ma🔬 cond-mat.mes-hall

Probing Quantum Anomalous Hall States in Twisted Bilayer WSe2 via Attractive Polaron Spectroscopy

This study provides the first direct evidence of a tunable Quantum Anomalous Hall state with spontaneous ferromagnetism in twisted bilayer WSe2 by utilizing polarization-resolved attractive polaron spectroscopy to observe time-reversal symmetry breaking and confirm a Chern number of C=1.

Beini Gao, Mahdi Ghafariasl, Mahmoud Jalali Mehrabad, Tsung-Sheng Huang, Lifu Zhang, Deric Session, Pranshoo Upadhyay, Rundong Ma, Ghadah Alshalan, Daniel Gustavo Suárez Forero, Supratik Sarkar, Suji Park, Houk Jang, Kenji Watanabe, Takashi Taniguchi, Ming Xie, You Zhou, Mohammad HafeziThu, 12 Ma🔬 cond-mat.mes-hall

Emergence of multiple topological spin textures in an all-magnetic van der Waals heterostructure

Using a first-principles-based spin-spiral approach and atomistic spin models, this study predicts the emergence of diverse topological spin textures, including Néel-type skyrmions and bimerons, in an all-magnetic Fe3_3GeTe2_2/Cr2_2Ge2_2Te6_6 van der Waals heterostructure driven by interfacial Dzyaloshinskii-Moriya interactions and geometric exchange frustration.

Moritz A. Goerzen, Tim Drevelow, Hendrik Schrautzer, Soumyajyoti Haldar, Stefan Heinze, Dongzhe LiThu, 12 Ma🔬 cond-mat.mes-hall