RT Journal Article
T1 Invisibility and PT Symmetry: A Simple Geometrical Viewpoint
A1 Sánchez Soto, Luis Lorenzo
A1 Monzón Serrano, Juan José
AB We give a simplified account of the properties of the transfer matrix for a complex one-dimensional potential, paying special attention to the particular instance of unidirectional invisibility. In appropriate variables, invisible potentials appear as performing null rotations, which lead to the helicity-gauge symmetry of massless particles. In hyperbolic geometry, this can be interpreted, via Möbius transformations, as parallel displacements, a geometric action that has no Euclidean analogy.
PB MDPI
SN 2073-8994
YR 2014
FD 2014
LK https://hdl.handle.net/20.500.14352/35546
UL https://hdl.handle.net/20.500.14352/35546
LA eng
NO Received: 24 February 2014 / Revised: 12 May 2014 / Accepted: 14 May 2014 / Published: 22 May 2014This article belongs to the Special Issue Physics based on Two-by-two Matrices.
NO Ministerio de Economía y Competitividad (MINECO)
DS Docta Complutense
RD 10 abr 2025