Banca de DEFESA: GRACA REGINA MATA DE ALMEIDA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : GRACA REGINA MATA DE ALMEIDA
DATE: 09/03/2022
TIME: 09:00
LOCAL: Instituto de Física (remoto)
TITLE:

Random-dimer like correlations in disordered discrete-time quantum walks

KEY WORDS:

Quantum walks, disorder, correlations,
Anderson localization

PAGES: 49
BIG AREA: Ciências Exatas e da Terra
AREA: Física
SUMMARY:

Quantum walks have been investigated due to their applicability in
modeling quantum computers. These computers use qubits as units of
information and may be better than current computers for certain tasks,
such as simulating physical systems. Due to its scale and need for
precision, it is important to know how the presence of noise in these
devices interferes with the speed of information transport. Thus, we
investigated quantum alks with the presence of disorder. This disorder can
be invariant in time, but vary in space, as well as the opposite: a disorder
invariant in space but which varies in time. In the first case, the literature
reports the occurrence of Anderson localization, while in the second, the
walking regime becomes diffuse. We numerically investigate these two
cases with the addition of a random dimer type correlation. The results
obtained show that the presence of the correlation leads the walk to a
superdiffusive regime in both types of disorder.

BANKING MEMBERS:
Externo à Instituição - BRUNO DE OLIVEIRA CHAGAS
Interno - 1063469 - GUILHERME MARTINS ALVES DE ALMEIDA
Interno - 1120933 - MARCELO LEITE LYRA
Presidente - 2657132 - WANDEARLEY DA SILVA DIAS