Clay weekly context brief for the Condensed Matter category (ISO week 2026-W28).

Clay tracks publications from the Condensed Matter feed list. Below are recent items from this category, each with its source and a short description of what the publication covers when one is available in the source feed.

Recent publications:
1. The pseudogap in high-$T_c$ superconductors from SU(2) gauge symmetry and dynamic correlation effects
   Source: cond-mat.str-el (Strongly Correlated Electrons)
   Link: https://arxiv.org/abs/2606.02838
   We consider the spectral properties of the two-dimensional Hubbard model, describing the electronic properties of high-$T_c$ compounds, within the SU(2) gauge theory, which assumes the separation of electronic degrees of freedom into those of spinon and chargon subsystems.
2. Quantum critical properties of non-Hermitian XY models with magnetic field
   Source: cond-mat.stat-mech (Statistical Mechanics)
   Link: https://arxiv.org/abs/2606.07275
   The characterization of the quantum critical properties of genuine non-Hermitian many-body systems remains ambiguous as neither the state considered nor the definition of expectation values is unique.
3. Topology of pulsating active matter: Defect asymmetry controls emergent motility
   Source: cond-mat.soft (Soft Condensed Matter)
   Link: https://arxiv.org/abs/2605.25996
   In pulsating active matter, topological defects are motile despite the absence of any macroscopic flows and microscopic self-propulsion.
4. Dissipative Vortex Binaries in Compact Fluid Domains with Geometric Corrections
   Source: cond-mat.quant-gas (Quantum Gases)
   Link: https://arxiv.org/abs/2604.23857
   We study a dissipative extension of vortex-binary motion in a doubly periodic fluid domain.
5. Controlling Waiting Time Statistics in Monitored Collective Spins: Mitigating Detector's Resolution Barrier in Measurement-Induced Phase Transitions
   Source: cond-mat.other (Other Condensed Matter)
   Link: https://arxiv.org/abs/2607.01332
   In collective dissipative spin systems, the postselection barrier can be partially mitigated; however, a further obstacle may be posed by the finite temporal resolution of detectors.
6. Best Practices for First-Principles Modeling of Amorphous Oxide Semiconductors: A Statistical Framework and Application to Zn-Sn-O
   Source: cond-mat.mtrl-sci (Materials Science)
   Link: https://arxiv.org/abs/2607.08667
   Ternary and quaternary amorphous oxide semiconductors have many properties that make them promising candidates for use in electronic applications like display, memory, and back end of line logic.
7. 2D Transport in an in-plane magnetic field
   Source: cond-mat.dis-nn (Disordered Systems and Neural Networks)
   Link: https://arxiv.org/abs/2607.06561
   A parallel in-plane magnetic field could, in principle, distinguish between two competing physical scenarios for the experimentally observed density-tuned 2D metal-insulator transition (where decreasing the carrier density leads to a crossover from an effective metal to an effective insulator): Wigner crystallization or Anderson localization.
8. Anomaly and symmetry-charge flow in mixed states
   Source: cond-mat.str-el (Strongly Correlated Electrons)
   Link: https://arxiv.org/abs/2604.24872
   The $(1+1)$-dimensional chiral anomaly is a paradigmatic exact result in quantum field theory, traditionally formulated for zero-temperature pure states where it arises from spectral flow induced by external gauge fields and captures universal ground-state properties.
9. Large earthquakes follow highly unequal ones
   Source: cond-mat.stat-mech (Statistical Mechanics)
   Link: https://arxiv.org/abs/2601.08356
   It was conjectured for a long time that the tectonic plates are in a self-organised state of criticality and that the Gutenberg-Richter law is a manifestation of that.
10. Machine learning evaluation of structural descriptors for supercooled water
   Source: cond-mat.soft (Soft Condensed Matter)
   Link: https://arxiv.org/abs/2605.00415
   The anomalous behavior of liquid water is widely associated with a liquid-liquid phase transition between high- and low-density states in the supercooled regime.
11. Experimental preparation of $W$ states through frustration on a programmable quantum simulator
   Source: cond-mat.quant-gas (Quantum Gases)
   Link: https://arxiv.org/abs/2510.17974
   $W$ states are a central class of multipartite entangled states with applications in quantum information processing, yet their scalable and deterministic preparation remains challenging.
12. Crystalline metal flakes: Platforms for advanced plasmonics and hybrid 2D material architectures
   Source: cond-mat.other (Other Condensed Matter)
   Link: https://arxiv.org/abs/2604.22988
   Crystalline noble metal flakes are emerging as versatile platforms in nanophotonics, enabling a broad range of optical phenomena and applications.
13. Physical aging of glasses of an organic semiconductor
   Source: cond-mat.mtrl-sci (Materials Science)
   Link: https://arxiv.org/abs/2607.08653
   All glasses, including organic semiconductor glasses, are non-equilibrium materials whose properties will change with time.
14. Ising surface defects can get dirty
   Source: cond-mat.dis-nn (Disordered Systems and Neural Networks)
   Link: https://arxiv.org/abs/2605.22628
   Real critical systems, such as uniaxial ferromagnets in the 3d Ising universality class, are constrained by boundaries and subject to random couplings.
15. Irreducible Geometry of Higher-Order Correlator Families
   Source: cond-mat.str-el (Strongly Correlated Electrons)
   Link: https://arxiv.org/abs/2607.08761
   Programmable quantum simulators are beginning to access correlators of increasing complexity, ranging from four-point out-of-time-ordered correlators to even higher-order many-body correlators.
16. Analytic framework for self-dual criticality in $\mathbb{Z}_k$ gauge theory with matter
   Source: cond-mat.stat-mech (Statistical Mechanics)
   Link: https://arxiv.org/abs/2407.07941
   The deconfined phase of 2+1D $\mathbb{Z}_k$ gauge theory exhibits topological order, with $e$ and $m$ anyons that have a $2\pi/k$ braiding phase.
17. Shear-driven mixing of segregated granular materials
   Source: cond-mat.soft (Soft Condensed Matter)
   Link: https://arxiv.org/abs/2604.24702
   As granular materials flow and settle, interactions among particles of different sizes or properties drive mixing and segregation, producing dynamics that shape systems ranging from silos to asteroids.
18. Preparation of quasi-two-dimensional Bose mixture of ultracold $^{23}$Na and $^{87}$Rb atoms
   Source: cond-mat.quant-gas (Quantum Gases)
   Link: https://arxiv.org/abs/2604.18072
   Quantum gases confined in reduced dimensions have enabled the observation of many exotic quantum phenomena.
19. Enhanced detection of circularly polarized photons with topological materials
   Source: cond-mat.other (Other Condensed Matter)
   Link: https://arxiv.org/abs/2602.00251
   Topological insulators (TI) are highly attractive platforms for next-generation optoelectronic and photonic devices.
20. Harnessing orbital Hall effect for energy-efficient magnetization switching in room-temperature van der Waals ferromagnet Fe3GaTe2
   Source: cond-mat.mtrl-sci (Materials Science)
   Link: https://arxiv.org/abs/2607.08618
   2D van der Waals (vdW) magnets provide new opportunities for spin-orbit torque magnetoresistive random-access memory (SOT-MRAM) due to their unique properties.
21. Numerical Experiments with Parameter Setting of Trotterized Quantum Phase Estimation for Quantum Hamiltonian Ground State Computation
   Source: cond-mat.dis-nn (Disordered Systems and Neural Networks)
   Link: https://arxiv.org/abs/2602.22349
   We numerically investigate quantum circuit elementary-gate level instantiations of the standard Quantum Phase Estimation (QPE) algorithm for the task of computing the ground-state energy of a quantum magnet; the disordered fully-connected quantum Heisenberg spin glass model.

Sources in this brief: cond-mat.dis-nn (Disordered Systems and Neural Networks); cond-mat.mtrl-sci (Materials Science); cond-mat.other (Other Condensed Matter); cond-mat.quant-gas (Quantum Gases); cond-mat.soft (Soft Condensed Matter); cond-mat.stat-mech (Statistical Mechanics); cond-mat.str-el (Strongly Correlated Electrons).
Selected 21 of 99 available items for this weekly brief.