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3. Artigo de Periódico

Type:	Artigo de Periódico
Title:	High resolution non-Markovianity in NMR
Authors:	Nadja Kolb Bernardes John Peterson Pinheiro da Silva Roberto Silva Sarthour Junior Alexandre Martins de Souza Carlos Henrique Monken Itzhak Roditi Ivan dos Santos Oliveira Júnior Marcelo Paleologo Elefteriadis de França Santos
Abstract:	Memoryless time evolutions are ubiquitous in nature but often correspond to a resolution-induced approximation, i.e. there are correlations in time whose effects are undetectable. Recent advances in the dynamical control of small quantum systems provide the ideal scenario to probe some of these effects. Here we experimentally demonstrate the precise induction of memory effects on the evolution of a quantum coin (qubit) by correlations engineered in its environment. In particular, we design a collisional model in Nuclear Magnetic Resonance (NMR) and precisely control the strength of the effects by changing the degree of correlation in the environment and its time of interaction with the qubit. We also show how these effects can be hidden by the limited resolution of the measurements performed on the qubit. The experiment reinforces NMR as a test bed for the study of open quantum systems and the simulation of their classical counterparts.
Subject:	Informação quântica Simulação quântica Ressonância magnética nuclear
language:	eng
metadata.dc.publisher.country:	Brasil
Publisher:	Universidade Federal de Minas Gerais
Publisher Initials:	UFMG
metadata.dc.publisher.department:	ICX - DEPARTAMENTO DE FÍSICA
Rights:	Acesso Aberto
metadata.dc.identifier.doi:	https://doi.org/10.1038/srep33945
URI:	http://hdl.handle.net/1843/46654
Issue Date:	27-Sep-2016
metadata.dc.url.externa:	https://www.nature.com/articles/srep33945
metadata.dc.relation.ispartof:	Scientific Reports
Appears in Collections:	Artigo de Periódico

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