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Topological Quantum Computation Based on Chiral Majorana Fermions
Biao Lian, Xiao-Qi Sun, Abolhassan Vaezi +2
Chiral Majorana fermion is a massless self-conjugate fermion which can arise as the edge state of certain two-dimensonal topological matters. It has been theoretically predicted an…
Gated Tuned Superconductivity and Phonon Softening in Mono- and Bilayer MoS
Yajun Fu, Erfu Liu, Hongtao Yuan +16
Superconductors at the atomic two-dimensional (2D) limit are the focus of an enduring fascination in the condensed matter community. This is because, with reduced dimensions, the e…
Quantum phase transition of chiral Majorana fermion in the presence of disorder
Biao Lian, Jing Wang, Xiao-Qi Sun +2
We study the quantum phase transitions of a disordered two-dimensional quantum anomalous Hall insulator with -wave superconducting proximity, which are governed by the percolati…
Wave Function and Emergent SU(2) Symmetry in Quantum Hall Bilayer
Biao Lian, Shou-Cheng Zhang
We propose a trial wave function for the quantum Hall bilayer system of total filling factor at a layer distance to magnetic length ratio $d/\ell=κ_{c1}\approx1.…
Magnetic quantum phase transition in Cr-doped Bi2(SexTe1-x)3 driven by the Stark effect
Zuocheng Zhang, Xiao Feng, Jing Wang +11
The interplay between magnetism and topology, as exemplified in the magnetic skyrmion systems, has emerged as a rich playground for finding novel quantum phenomena and applications…
Double helix nodal line superconductor
Xiao-Qi Sun, Biao Lian, Shou-Cheng Zhang
Time-reversal invariant superconductors in three dimensions may contain nodal lines in the Brillouin zone, which behave exactly as Wilson loops of 3d momentum-space Chern-Simons th…
Weyl Semimetal and Topological Phase Transition in Five Dimensions
Biao Lian, Shou-Cheng Zhang
We study two Weyl semimetal generalizations in five dimensions (5d) which have Yang monopoles and linked Weyl surfaces in the Brillouin zone, respectively, and carry the second Che…