57 citations · 200 across the 16 of their papers we have counts for
16 papers
Tip-Tuned Renormalization-Group Spectroscopy Unmasks a False-positive Topological Superconducting Vortex
Zhenhua Zhu, Qun Zhu, Yong-Wei Wang +6
Clean, nonsplit vortex zero-bias peaks (ZBPs) can be misinterpreted as Majorana zero modes (MZMs), making static scanning tunneling microscopy intrinsically ambiguous. Here we use…
Influence of topological degeneracy on the boundary Berezinskii-Kosterlitz-Thouless quantum phase transition of a dissipative resonant level
Gu Zhang, Zhan Cao, Dong E. Liu
The interplay between a topological degeneracy and the residue degeneracy (also known as the residue entropy) of quantum criticality remains as an important but not thoroughly unde…
Differential current noise as an identifier of Andreev bound states that induce nearly quantized conductance plateaus
Zhan Cao, Gu Zhang, Hao Zhang +4
Quantized conductance plateaus, a celebrated hallmark of Majorana bound states (MBSs) predicted a decade ago, have recently been observed with small deviations in iron-based superc…
In situ tuning of dynamical Coulomb blockade on Andreev bound states in hybrid nanowire devices
Shan Zhang, Zhichuan Wang, Dong Pan +14
Electron interactions in quantum devices can exhibit intriguing phenomena. One example is assembling an electronic device in series with an on-chip resistor. The quantum laws of el…
Measuring statistics-induced entanglement entropy with a Hong-Ou-Mandel interferometer
Gu Zhang, Changki Hong, Tomer Alkalay +4
Despite its ubiquity in quantum computation and quantum information, a universally applicable definition of quantum entanglement remains elusive. The challenge is further accentuat…
Theoretical proposal to obtain strong Majorana evidence from scanning tunneling spectroscopy of a vortex with a dissipative environment
Gu Zhang, Chuang Li, Geng Li +4
It is predicted that a vortex in a topological superconductor contains a Majorana zero mode (MZM). The confirmative Majorana signature, i.e., the quantized conductance, ho…
Viscous flow through a finite-width slit: Boundary conditions and dissipation
Daniil Asafov, Valentin Kachorovskii, Konstantin Tikhonov +1
We study the hydrodynamic viscous electronic transport in a two-dimensional sample separated into two semi-infinite planes by a one-dimensional infinite barrier. The semi-infinite…
Recent progress on Majorana in semiconductor-superconductor heterostructures--Engineering and detection
Zhan Cao, Shumeng Chen, Gu Zhang +1
Majorana zero modes (MZMs) are exotic excitations (in condensed matter systems) that have potential applications in topological quantum computation. Though MZMs have been predicted…
Probing electron-hole weights of an Andreev bound state by transient currents
Zhan Cao, Gu Zhang, Hao Zhang +4
Andreev bound states (ABSs) are localized quantum states that contain both electron and hole components. They ubiquitously reside in inhomogeneous superconducting systems. Followin…
Plateau regions for zero-bias peaks within 5% of the quantized conductance value
Zhaoyu Wang, Huading Song, Dong Pan +13
Probing an isolated Majorana zero mode is predicted to reveal a tunneling conductance quantized at at zero temperature. Experimentally, a zero-bias peak (ZBP) is expected…
Large Andreev bound state zero bias peaks in a weakly dissipative environment
Zhichuan Wang, Shan Zhang, Dong Pan +14
We study Andreev bound states in hybrid InAs-Al nanowire devices. The energy of these states can be tuned to zero by gate voltage or magnetic field, revealing large zero bias peaks…
Double Fu-teleportation and anomalous Coulomb blockade in a Majorana-hosted superconducting island
Yiru Hao, Gu Zhang, Donghao Liu +1
We study the temperature dependence of Coulomb Blockade peak conductance based on a Majorana-hosted superconducting island. In the low-temperature regime, we discover a coherent do…
Universal conductance scaling of Andreev reflections using a dissipative probe
Donghao Liu, Gu Zhang, Zhan Cao +2
The Majorana search is caught up in an extensive debate about the false-positive signals from non-topological Andreev bound states (ABSs). We introduce a remedy using the dissipati…
Suppressing Andreev bound state zero bias peaks using a strongly dissipative lead
Shan Zhang, Zhichuan Wang, Dong Pan +14
Hybrid semiconductor-superconductor nanowires are predicted to host Majorana zero modes, manifested as zero-bias peaks (ZBPs) in tunneling conductance. ZBPs alone, however, are not…
Conductance of a Dissipative Quantum Dot: Nonequilibrium Crossover Near a Non-Fermi-Liquid Quantum Critical Point
Gu Zhang, E. Novais, Harold U. Baranger
We find the nonlinear conductance of a dissipative resonant level in the nonequilibrium steady state near its quantum critical point. The system consists of a spin-polarized quantu…
Rescuing a Quantum Phase Transition with Quantum Noise
Gu Zhang, Eduardo Novais, Harold U. Baranger
We show that placing a quantum system in contact with an environment can enhance non-Fermi-liquid correlations, rather than destroy quantum effects as is typical. The system consis…