67 citations · 112 across the 7 of their papers we have counts for
7 papers
A double-resonator coupler for high-fidelity two-qubit gates between superconducting qubits
Seunghyeon Jin, Seungha Woo, Shinyoung Hwang +6
Tunable couplers have enabled two-qubit gate fidelities in superconducting quantum processors to approach , yet simultaneously suppressing residual interactions and maintai…
Measurements of the quantum geometric tensor in solids
Mingu Kang, Sunje Kim, Yuting Qian +15
Understanding the geometric properties of quantum states and their implications in fundamental physical phenomena is at the core of modern physics. The Quantum Geometric Tensor (QG…
Unconventional topological phase transition of the Hopf insulator
Sunje Kim, Ysun Choi, Hyeongmuk Lim +1
The topological phase transition between two band insulators is mediated by a gapless state whose low-energy band structure normally contains sufficient information for describing…
Quantum Valley Hall effect without Berry curvature
Rasoul Ghadimi, Chiranjit Mondal, Sunje Kim +1
The quantum valley Hall effect (QVHE) is characterized by the valley Chern number (VCN) in a way that one-dimensional (1D) chiral metallic states are guaranteed to appear at the do…
Real Hopf Insulator
Hyeongmuk Lim, Sunje Kim, Bohm-Jung Yang
Establishing the fundamental relation between the homotopy invariants and the band topology of Hamiltonians has played a critical role in the recent development of topological phas…
Unremovable linked nodal structures protected by crystalline symmetries in stacked bilayer graphene with Kekulé texture
Chiranjit Mondal, Sunje Kim, Bohm-Jung Yang
Linking structure is a new concept characterizing topological semimetals, which indicates the interweaving of gap-closing nodes at the Fermi energy () with other nodes below $…
Linking structures of doubly charged nodal surfaces in centrosymmetric superconductors
Sunje Kim, Dong-Choon Ryu, Bohm-Jung Yang
In topological semimetals and nodal superconductors, band crossings between occupied and unoccupied bands form stable nodal points/lines/surfaces carrying quantized topological cha…