A5066725541- Topological Materials and Phenomena
- Graphene research and applications
- Quantum many-body systems
- Advanced Condensed Matter Physics
- Quantum and electron transport phenomena
- Spectroscopy and Quantum Chemical Studies
- Theoretical and Computational Physics
- Magnetic and transport properties of perovskites and related materials
- Tensor decomposition and applications
- Quantum optics and atomic interactions
- Complex Network Analysis Techniques
Peking University
2023-2025
Collaborative Innovation Center of Quantum Matter
2023-2025
Renmin University of China
2022-2023
Coulomb interaction between two closely spaced but electrically isolated conductors can induce a voltage in one of them upon feeding current into the other. This effect has been widely studied nonmagnetic strongly interacting systems and historically interpreted terms momentum energy exchanges, which thus complies with Onsager's reciprocity. Here we report non-reciprocal drag observed ferromagnetic Chern insulators that host quantum anomalous Hall effects. By measurements circuit reversals,...
We have proposed an efficient algorithm to calculate physical quantities in the translational invariant three-dimensional tensor networks, which is particularly relevant study of classical statistical models and ($2+1$)-dimensional quantum lattice models. In context a model, we determine partition function by solving dominant eigenvalue problem transfer matrix, whose left right eigenvectors are represented two projected entangled simplex states. These states not Hermitian conjugate each...
In the context of tensor network states, we for first time reformulate corner transfer matrix renormalization group (CTMRG) method into a variational bilevel optimization algorithm. The solution problem corresponds to fixed-point environment pursued in conventional CTMRG method, from which partition function classical statistical model, represented by an infinite network, can be efficiently evaluated. validity this idea is demonstrated high-precision calculation residual entropy dimer and...
Interfacing the quantum anomalous Hall insulator with a conventional superconductor is known to be promising manner for realizing topological superconductor, which has been continuously pursued years. Such proximity route depends great extent on control of delicate interfacial coupling two constituents. However, recent experiment reported failure reproduce such ascribed negligence electrical short by in theoretical proposal. Here, we this attention interface control. The resulted conductance...
The intrinsic antiferromagnetic topological insulator MnBi2Te4and members of its family have been the subject theoretical and experimental research, which has revealed presence a variety defects disorders that are crucial in determining magnetic properties. This also brings about challenges realizing quantum states like anomalous Hall axion states. Here, utilizing cryogenic magnetoelectric transport measurements, we systematically investigate effects arising from doping by antisite extrinsic...
Abstract The percolation plays an essential role in the physics of plateau transition, localization, and breakdown quantum Hall (QH) systems. In practice, it always exists probably due to sample imperfections has be addressed before realizing full potentials topological electronics qubits. Here, we investigate cause, distribution, number a anomalous (QAH) insulator anti-Hall bar geometry with two perimeters, which allows for probing both inter- intra-perimeter percolations by injecting...
We consider the statistics of results a measurement spreading operator in Krylov basis generated by Hamiltonian quantum system starting from specified initial pure state. first obtain probability distribution measurements this at certain instant time, and compute characteristic function distribution. show that moments are related to so-called generalised spread complexities, expressions for them several cases when is an element Lie algebra. Furthermore, considering continuum limit basis, we...