235 papers
This study theoretically proposes that resonant optical excitation of infrared-active lattice vibrations can induce nonlinear phononics to straighten the interlayer Ni-O-Ni bond angle in the bilayer nickelate LaNiO, offering a light-based alternative to pressure for controlling its crystal structure toward superconductivity.
By combining molecular beam epitaxy, in-situ ARPES, and transport measurements, this study demonstrates that reducing the dimensionality of CeSi₂ films from three to two dimensions suppresses crystal electric field excitations and lowers the magnetic resistivity peak temperature while preserving the Kondo ground state, thereby revealing how quantum confinement tunes heavy-fermion electronic states.
This paper investigates an infinite-range quantum Heisenberg spin glass model to demonstrate how varying the number of fermionic flavors drives a dynamical crossover from a Sachdev-Ye-Kitaev critical phase with scale-invariant spectral densities to a low-energy spin-glass ordered phase characterized by universal sub-Ohmic susceptibility.
This review summarizes recent advancements in achieving ambient-pressure superconductivity in bilayer nickelate LaNiO thin films through epitaxial strain engineering, while also examining experimental characterizations, improvements, and theoretical insights into their electronic structure and pairing symmetry.
This paper presents the first exact microscopic derivation of the M-Wright function characterizing anomalous integrated spin current fluctuations in a one-dimensional Fermi-Hubbard model with infinitely strong repulsive interactions, thereby extending the understanding of universal transport behaviors from classical to quantum many-body systems.
This study demonstrates that the antiphase domains of the magnetoelectric antiferromagnet LiCoPO can be imaged using simple transmission microscopy by exploiting their spontaneous non-reciprocal light absorption (directional dichroism), particularly near the 1550 nm telecommunication wavelength.
This paper investigates whether electronic quantum criticality can enable optical phonons to drive linear-in-temperature resistivity at low temperatures by softening their energy gap, ultimately concluding that while criticality enhances phonon softening, the resulting dynamics typically lie at the marginal boundary or are weakened by feedback, limiting the robustness of this mechanism for explaining strange-metal transport.
This paper proposes a minimal model of frustrated hardcore bosons on a -flux ladder that generates exact quantum many-body scars, offering a cross-platform experimental realization in cold atom and Rydberg atom systems to benchmark coherence and explore nonergodic dynamics.
This paper demonstrates that a non-equilibrium open system with weak time-reversal symmetry can exhibit non-quantized Hall conductance without an external magnetic field, as interactions with bosonic degrees of freedom and an external reservoir induce a time-reversal-breaking self-energy in the fermionic subsystem, a phenomenon that requires wave-function renormalization effects beyond a simple mass term.
This paper proposes a universal theoretical framework using twisted homobilayers of -valley square-lattice systems, specifically identifying ZnF as a promising candidate to simulate the effective models of high-temperature superconductors like cuprates and iron-based materials by realizing single-orbital and multi-orbital Hubbard models within their moiré bands.
Using a scanning superconducting magnetic sensor to image local current flow in dual-gated bilayer graphene, researchers identified distinct ballistic, hydrodynamic, and diffusive transport regimes, demonstrating that the flat band regime with its large effective mass enables ultra-short electron-electron scattering lengths (~50 nm) and strong nonlinearities, thereby paving the way for miniaturized electronic devices based on electron hydrodynamics.
This paper demonstrates a gate-tunable Fabry-Pérot interferometer that enables the selective control and measurement of distinct statistical phases ( and ) for different anyon types in even-denominator fractional quantum Hall states, thereby resolving individual anyon tunneling events and addressing a key challenge in observing non-Abelian braiding.
Using angle-resolved photoemission spectroscopy, researchers successfully created, detected, and controlled quasi-steady dark excitons in doped SnSe2, revealing a novel anisotropic excitonic gap phase that extends the study of dark excitons from ultrafast timescales to quasi-equilibrium conditions.
This study reports that the distorted triangular-lattice cobalt vanadate NaSrCo(VO) exhibits a low-temperature canted ferromagnetic order, highlighting how the specific tetrahedral anion (O) critically tunes exchange interactions to produce distinct magnetic ground states compared to its trigonal sister compounds.
This paper introduces the finite-difference parquet method, a nonperturbative approach that accurately reproduces the strong-coupling pseudogap in the underdoped Hubbard model by revealing how enhanced, energy-dependent electron-paramagnon scattering drives the phenomenon through decisive vertex corrections.
This paper establishes a unified framework linking the functional renormalization group and dual holography by reformulating the RG flow of a probability distribution via a Fokker-Planck equation into a path integral representation, which yields a Hamilton-Jacobi equation for an effective action that explicitly incorporates RG -functions into the bulk dynamics.
This paper proposes a minimal model of interacting fermions on a trimerized triangular lattice that realizes a kinetic-energy-driven ferromagnetic insulating phase at 1/3-filling, where ferromagnetic superexchange dominates over antiferromagnetic interactions for large but finite , a phenomenon absent in the analogous trimerized Kagome lattice.
By utilizing Coulomb engineering to tune dielectric screening in ultra-clean TiSe heterostructures, the study demonstrates that while the band gap is renormalized, the charge-density-wave transition remains unaffected, thereby ruling out excitonic insulator physics as the primary driver of the phase transition in TiSe.
This paper extends the analysis of critical Fermi surface deformations at an Ising-nematic quantum critical point by employing quantum Boltzmann equations that include collision effects, revealing that while bosonic dynamics do not alter the solutions, the system supports a robust zero-sound mode and an infinite family of discrete higher-order harmonic modes alongside a continuous particle-hole band.
Using numerically exact diagrammatic Monte Carlo simulations, this study demonstrates that while long-range Coulomb repulsion suppresses the superfluid transition temperature of bond bipolarons in a two-dimensional Su--Schrieffer--Heeger model, a significant remains achievable across a broad parameter range, including the adiabatic regime.