Driven-Dissipative Landau Polaritons: Two Highly Nonlinearly-Coupled Quantum Harmonic Oscillators

This paper demonstrates that a driven-dissipative system coupling the Landau levels of a charge-neutral particle in a synthetic gauge potential to a quantized optical cavity can be effectively modeled as two highly nonlinearly coupled quantum harmonic oscillators, giving rise to hybrid "Landau polaritons" with unique entanglement, squeezing, and diverse nonequilibrium dynamics.

Farokh Mivehvar2026-03-06⚛️ quant-ph

Competing and Intertwined Orders in Boson-Doped Mott Antiferromagnets

Using large-scale density matrix renormalization group simulations of the bosonic tt-tt'-JJ model, this study reveals six distinct quantum phases—including pair density waves and phase-separated ferromagnetic domains—arising from the competition between doped holes and antiferromagnetic order, while proposing a concrete experimental realization in Rydberg tweezer arrays to explore these intertwined orders relevant to high-TcT_c superconductivity.

Xin Lu, Jia-Xin Zhang, Lukas Homeier + 3 more2026-03-06🔬 physics

Gaussian fermionic embezzlement of entanglement

This paper demonstrates that Gaussian operations are sufficient to embezzlement arbitrary Gaussian entangled states from ground states of non-interacting critical fermions, establishing embezzlement as a generic property of fermionic Gaussian states and bridging finite-size systems with abstract von Neumann algebra classifications through novel distance bounds.

Alessia Kera, Lauritz van Luijk, Alexander Stottmeister, Henrik Wilming2026-03-06⚛️ quant-ph

Structure and magnetism of MnGe thin films grown with a nonmagnetic CrSi template

This study reports the successful growth of single-phase B20 MnGe thin films on a nonmagnetic CrSi template via molecular-beam epitaxy, revealing intrinsic magnetic properties including a cone phase and an unexpected low-temperature remanent moment suggestive of a triple-Q topological spin-hedgehog lattice or multidomain helical state.

B. D. MacNeil, J. S. R. McCoombs, D. Kalliecharan + 7 more2026-03-06🔬 cond-mat.mtrl-sci

Mixed-State Measurement-Induced Phase Transitions in Imaginary-Time Dynamics

This paper introduces measurement-dressed imaginary-time evolution (MDITE) as a novel framework for studying mixed-state phase transitions driven by the competition between coherence-restoring dynamics and decoherence, demonstrating the existence of new critical behaviors in one- and two-dimensional models that fall outside known universality classes.

Yi-Ming Ding, Zenan Liu, Xu Tian, Zhe Wang, Yanzhang Zhu, Zheng Yan2026-03-06⚛️ quant-ph

Structural modulation, physical properties, and electronic band structure of the kagome metal UCr6_6Ge6_6

This study reports the synthesis and characterization of the 5f-electron kagome metal UCr6_6Ge6_6, revealing its unique monoclinic supercell modulation, itinerant uranium behavior, and the presence of chromium-derived flatbands near the Fermi level, which collectively highlight the tunable magnetic ground states within the RM6X6RM_6X_6 family.

Z. W. Riedel, P. A. E. Murgatroyd, C. S. Kengle + 13 more2026-03-06🔬 cond-mat.mtrl-sci

Nodal structure of bound-state wave functions for systems with quartic dispersion

This paper analyzes the nodal structure of bound-state wave functions in one-dimensional quantum systems with quartic dispersion, demonstrating that while the classical oscillation theorem holds in classically allowed regions, it breaks down in forbidden regions where wave functions exhibit additional nodes, a finding supported by semiclassical, variational, and exact solvable model approaches.

E. V. Gorbar, B. E. Grinyuk, V. P. Gusynin2026-03-06🔬 physics

Giant Magnetocrystalline Anisotropy in Honeycomb Iridate NiIrO3 with Large Coercive Field Exceeding 17 T

Through a soft topotactic reaction, researchers synthesized NiIrO3, the first honeycomb iridate with coupled 3d-5d magnetic sublattices, which exhibits a unique ferrimagnetic order and record-breaking magnetocrystalline anisotropy and coercivity driven by the synergistic effects of lattice frustration and strong spin-orbit coupling.

Chuanhui Zhu, Pengfei Tan, Xiao-Sheng Ni + 13 more2026-03-06🔬 cond-mat.mtrl-sci

Thermodynamic Phase Transitions in Finite Su-Schrieffer-Heeger Chains: Metastability and Heat Capacity Anomalies

This study investigates the thermodynamic properties of finite Su-Schrieffer-Heeger chains, revealing a distinct metastable phase marked by heat capacity anomalies that emerges from hopping asymmetry and finite-size effects, thereby uncovering a rich bulk phase structure separate from topological boundary-driven transitions.

Carlos Magno da Conceição, Julio César Pérez-Pedraza, Alfredo Raya + 1 more2026-03-06🔬 cond-mat.mes-hall

Successive single-q and double-q orders in an anisotropic XY model on the diamond structure: a model for quadrupole ordering in PrIr2_2Zn20_{20}

This study utilizes classical Monte Carlo simulations of an effective Γ3\Gamma_3 quadrupole model on a diamond lattice to demonstrate that the competition between magnetic fields and quadrupole anisotropy, mediated by a crucial symmetry-allowed biquadratic interaction, drives successive single-qq and double-qq ordering transitions that reproduce the experimentally observed weak-field topology in PrIr2_2Zn20_{20}.

Kaito Sasa, Kazumasa Hattori2026-03-06🔬 physics

Spectroscopic evidence of disorder-induced quantum phase transitions in monolayer Fe(Te,Se) superconductor

This study demonstrates that controllably introducing disorder via iron cluster deposition in monolayer Fe(Te,Se) drives a superconductor-insulator transition, revealing a disorder-induced quantum phase transition characterized by the evolution from superconducting to insulating U-shaped gaps attributed to localization-enhanced Cooper pair correlations.

Guanyang He, Ziqiao Wang, Longxin Pan + 5 more2026-03-06🔬 cond-mat.mes-hall

Orbital-Selective Spin-Orbit Mott Insulator in Fractional Valence Iridate La3_3Ir3_3O11_{11}

This study demonstrates that La3_3Ir3_3O11_{11} is an orbital-selective spin-orbit Mott insulator where structural distortions and dimerization drive the Jeff=1/2J_{\mathrm{eff}}=1/2 bands to half-filling for correlation-driven Mott localization, while the Jeff=3/2J_{\mathrm{eff}}=3/2 bands remain band-insulating.

Kai Wang, Jun Yang, Chaoyang Kang + 5 more2026-03-06🔬 cond-mat.mtrl-sci

Non-equilibrium bosonization of fractional quantum Hall edges

This paper develops a non-equilibrium bosonization framework based on the Keldysh action to analyze charge statistics, Green's functions, and tunneling transport in fractional quantum Hall edges, demonstrating how interaction-induced anyonic fractionalization and braiding phases manifest in measurable observables like the Fano factor for both single-mode and multi-mode systems.

Christian Spånslätt, Jinhong Park, Alexander D. Mirlin2026-03-06🔬 cond-mat.mes-hall