Discovery of Dynamical Heterogeneity in a Supercooled Magnetic Monopole Fluid

By measuring microsecond-resolved spontaneous magnetization fluctuations in Dy2Ti2O7, researchers directly detected dynamical heterogeneity in a supercooled magnetic monopole fluid, observing a sharp bifurcation in monopole noise and the emergence of correlated current bursts that evolve with escalating spatiotemporal scales as the system approaches the glass transition.

Jahnatta Dasini, Chaia Carroll, Hiroto Takahashi, Jack Murphy, Chun-Chih Hsu, Sudarshan Sharma, Catherine Dawson, Fabian Jerzembeck, Stephen J. Blundell, Graeme Luke, J. C. Séamus Davis, Jonathan WardMon, 09 Ma🔬 cond-mat

Parity readout in Majorana box qubits from the dispersive to the resonant regime

This paper presents a general theoretical framework for Majorana box qubit parity readout across the dispersive-to-resonant crossover, demonstrating that while semiclassical factorization is quantitatively accurate in the dispersive regime, it introduces small but measurable deviations in the resonant regime when compared to exact numerical solutions of the Lindblad master equation.

Sara M. Benjadi, Reinhold EggerMon, 09 Ma🔬 cond-mat

Magnetoelastic signatures of thermal and quantum phase transitions in a deformable Ising chain under a longitudinal and transverse magnetic field

This paper investigates a deformable spin-1/2 Ising chain under magnetic fields, revealing that longitudinal fields induce discontinuous thermal phase transitions with hysteresis, whereas transverse fields drive a continuous quantum phase transition, with both scenarios exhibiting distinct anomalies in magnetic and elastic properties.

David Sivy, Jozef StreckaMon, 09 Ma🔬 cond-mat

Magnetoelastic signatures of conical state and charge density waves in antiferromagnetic FeGe

This paper presents a unified magnetoelastic framework that explains ultrasound velocity anomalies in antiferromagnetic FeGe by attributing low-temperature and intermediate-temperature features to the hybridization of phonons with a field-dependent conical spin structure and a field-independent charge density wave, respectively, thereby quantitatively linking elastic softening to magnetic and electronic instabilities.

L. Prodan, J. Sourd, L. ChioncelMon, 09 Ma🔬 cond-mat

Coexisting Paramagnetic Spins and Long-Range Magnetic Order in Ba4_4(Ru0.92_{0.92}Ir0.08_{0.08})3_3O10_{10}

This study demonstrates that dilute Ir substitution in Ba4_4Ru3_3O10_{10} preferentially occupies the central Ru(1) site, disrupting the molecular-orbital network to suppress the Néel temperature while inducing a coexistence of long-range zigzag antiferromagnetic order on the outer Ru sites and paramagnetic spins.

Farhan Islam, Jiasen Guo, Wei Tian, Bing Li, Xudong Huai, Thao T. Tran, Gang Cao, Zachary Morgan, Feng YeMon, 09 Ma🔬 cond-mat

Charge-ordered states in twisted MoTe2_2

This paper investigates interaction-driven charge-density-wave states in twisted MoTe2_2 using a Landau-level mapping, revealing that the preferred CDW configuration depends on the twist angle relative to a magic angle and that these states can exhibit non-zero Chern numbers, offering a pathway to reentrant integer quantum Hall effects and competing with fractional Chern insulators.

Sparsh Mishra, Tobias M. R. Wolf, Allan H. MacDonaldMon, 09 Ma🔬 cond-mat

Electric field switching of chiral phonons

This paper demonstrates the reversible, non-volatile electric-field switching of chiral phonon angular momentum in ferroelectric BaTiO3, verified through circular dichroic resonant inelastic X-ray scattering and first-principles calculations, establishing a robust mechanism for phonon-based information and energy technologies.

Michael Grimes, Clifford J. Allington, Hiroki Ueda, Carl P. Romao, Kurt Kummer, Puneet Kaur, Li-Shu Wang, Yao-Wen Chang, Jan-Chi Yang, Shih-Wen Huang, Urs StaubMon, 09 Ma🔬 cond-mat.mtrl-sci

The Evolution of Magnetism in a Thin Film Pyrochlore Ferromagnetic Insulator

This paper reports the successful synthesis of the first thin films of the ferromagnetic insulator Y2V2O7, demonstrating that they retain bulk-like magnetic transition temperatures while exhibiting a tunable magnetic anisotropy shift from in-plane to out-of-plane due to strain relaxation, thereby paving the way for strain-engineered topological magnon devices.

Margaret A. Anderson, Megan E. Goh, Yang Zhang, Kyeong-Yoon Baek, Michael Schulze, Mario Brutzam, Christoph Liebald, Chris Lygouras, Dan Ferenc Segedin, Aaron M. Day, Zubia Hasan, Donald A. Walko, Hua Zhou, Peter Bencok, Alpha T. N'Diaye, Charles M. Brooks, Ismail El Baggari, John T. Heron, S. M. Koopayeh, Daniel Rytz, Christo Guguschev, Julia A. MundyMon, 09 Ma🔬 cond-mat.mtrl-sci

Andreev bound state spectroscopy of a quantum-dot-based Aharonov-Bohm interferometer with superconducting terminals

This paper analytically and numerically demonstrates that a quantum-dot-based Aharonov-Bohm interferometer with superconducting terminals is spectrally equivalent to a simpler side-coupled system, revealing how geometric factors and side-mode competition govern Andreev bound state spectra and induce a Josephson diode effect.

Peter Zalom, Don Rolih, Rok ŽitkoMon, 09 Ma🔬 cond-mat.mes-hall

Quantum geometry from the Moyal product: quantum kinetic equation and non-linear response

This paper systematically derives a dissipationless quantum kinetic equation for multi-band free fermionic systems using the Moyal product formalism to fully band-diagonalize dynamics and analyze second-order gradient corrections, revealing the critical role of quantum geometric tensors in band-resolved thermodynamics, nonlinear transport, and density-density response functions.

Takamori Park, Xiaoyang Huang, Lucile Savary, Leon BalentsMon, 09 Ma🔬 cond-mat.mes-hall

Tomographic collective modes in a magnetic field

This paper investigates the transition from tomographic to conventional transport in two-dimensional Fermi liquids under a magnetic field by using a numerically exact solution of the linearized Boltzmann equation to demonstrate that a critical magnetic field causes one of two diffusive tomographic collective modes to disappear, leaving a remaining mode that becomes increasingly hydrodynamic at higher fields.

Jeff Maki, Johannes HofmannMon, 09 Ma🔬 cond-mat.mes-hall

Riemannian geometric classification and emergent phenomena of magnetic textures

This paper proposes a refined classification of magnetic textures using differential geometry by introducing geodesic and torsional scalar spin chiralities to fully characterize noncoplanar states, and demonstrates that the geodesic scalar spin chirality induces novel emergent band asymmetry and nonreciprocal responses as a purely orbital quantum geometric effect.

Koki Shinada, Naoto NagaosaMon, 09 Ma🔬 cond-mat.mes-hall

Moiré-induced symmetry breaking of charge order in van der Waals heterostructures

This study demonstrates that stacking misfit layered chalcogenides with 1H-TaS2_2 induces anisotropic symmetry breaking in the charge-density wave state through a nonlinear coupling with the uniaxial moiré potential, while leaving the material's s-wave superconductivity largely unaffected.

Sandra Sajan, Laura Pätzold, Tarushi Agarwal, Clara Pfister, Haojie Guo, Sisheng Duan, P. V. Sruthibhai, Mariana Rossi, Maria N. Gastiasoro, Sara Barja, Ravi P. Singh, Tim Wehling, Miguel M. UgedaMon, 09 Ma🔬 cond-mat.mes-hall

Entanglement Barriers from Computational Complexity: Matrix-Product-State Approach to Satisfiability

This paper demonstrates that the failure of the quantum-inspired Matrix Product State approach to solve 3-SAT via imaginary time propagation is fundamentally caused by classical computational complexity, specifically the hardness of the #3-SAT counting problem, which manifests as an entanglement barrier and necessitates superlinear non-stabilizer resources.

Tim Pokart, Frank Pollmann, Jan Carl BudichMon, 09 Ma⚛️ quant-ph

AKLT Hamiltonian from Hubbard tripods

This paper demonstrates that the spin-1 AKLT Hamiltonian can be realized in tunable quantum-dot arrays by deriving an effective bilinear-biquadratic spin model from half-filled Hubbard tripods, where specific hopping parameters and coupling geometries yield the characteristic singlet-triplet degeneracy while suppressing unwanted longer-range interactions.

Claire Benjamin, Dániel Varjas, Gábor Széchenyi, Judit Romhányi, László OroszlányMon, 09 Ma⚛️ quant-ph

Universal Dynamical Scaling of Strong-to-Weak Spontaneous Symmetry Breaking in Open Quantum Systems

This paper establishes that the late-time dynamical scaling of strong-to-weak spontaneous symmetry breaking in one-dimensional open quantum systems is universally controlled by the symmetry class of the Lindbladian rather than its spectral gap structure, resulting in exponential growth of the Rényi-2 correlation length for Z2\mathbb{Z}_2 symmetry and algebraic, filling-dependent scaling for U(1) symmetry.

Chang Shu, Kai Zhang, Kai SunMon, 09 Ma⚛️ quant-ph