This article is cited in 12 papers

CONDENSED MATTER

Collapse of the Fano resonance caused by the nonlocality of the Majorana state

S. V. Aksenov^a, M. Yu. Kagan<sup>bc

a</sup> Kirensky Institute of Physics, Federal Research Center KSC, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036 Russia
^b National Research University Higher School of Economics, Moscow, 101000 Russia
^c Kapitza Institute for Physical Problems, Russian Academy of Sciences, Moscow, 119334 Russia

Abstract: Owing to the nonlocal character of the Majorana state, the corresponding excitations are of great interest. It is demonstrated that the direct consequence of such nonlocality is the collapse of the Fano resonance manifesting itself in the conductance of an asymmetric interference device, the arms of which are connected by a one-dimensional topological superconductor. In the framework of the spinless model, it is shown that the predicted effect is associated with an increase in the multiplicity of the degeneracy of the zero-energy state of the structure arising at the critical point of the Kitaev model. Such an increase leads to the formation of a bound state in the continuum.

Received: 14.01.2020
Revised: 10.02.2020
Accepted: 10.02.2020

DOI: 10.31857/S0370274X20050094

 English version: Journal of Experimental and Theoretical Physics Letters, 2020, 111:5, 286–292

Bibliographic databases:

• 
• 
•