Colloquium: Protecting quantum information against environmental noise

D Suter, GA Álvarez - Reviews of Modern Physics, 2016 - APS
Quantum technologies represent a rapidly evolving field in which the specific properties of
quantum mechanical systems are exploited to enhance the performance of various …

Decoherence in the quantum walk on the line

A Romanelli, R Siri, G Abal, A Auyuanet… - Physica A: Statistical …, 2005 - Elsevier
We investigate the quantum walk on the line when decoherences are introduced either
through simultaneous measurements of the chirality and particle position, or as a result of …

Attenuation of polarization echoes in nuclear magnetic resonance: A study of the emergence of dynamical irreversibility in many-body quantum systems

PR Levstein, G Usaj, HM Pastawski - The Journal of chemical physics, 1998 - pubs.aip.org
The reversal of the time evolution of the local polarization in an interacting spin system
involves a sign change of the effective dipolar Hamiltonian which refocuses the “spin …

Tight Binding'methods in quantum transport through molecules and small devices: From the coherent to the decoherent description

HM Pastawski, E Medina - arXiv preprint cond-mat/0103219, 2001 - arxiv.org
We discuss the steady-state electronic transport in solid-state and molecular devices in the
quantum regime. The decimation technique allows a comprehensive description of the …

Emergent decoherence induced by quantum chaos in a many-body system: A Loschmidt echo observation through NMR

CM Sánchez, AK Chattah, HM Pastawski - Physical Review A, 2022 - APS
In the long quest to identify and compensate the sources of decoherence in many-body
systems far from the ground state, the varied family of Loschmidt echoes (LEs) became an …

Robustness of spin-coupling distributions for perfect quantum state transfer

A Zwick, GA Alvarez, J Stolze, O Osenda - Physical Review A—Atomic …, 2011 - APS
The transmission of quantum information between different parts of a quantum computer is
of fundamental importance. Spin chains have been proposed as quantum channels for …

[图书][B] Spectroscopic Properties of Inorganic and Organometallic Compounds: Volume 26

JH Carpenter, SJ Clark, KB Dillon, JD Donaldson… - 2007 - books.google.com
Spectroscopic Properties of Inorganic and Organometallic Compounds provides a unique
source of information on an important area of chemistry. Divided into sections mainly …

Time-resolved observation of spin waves in a linear chain of nuclear spins

ZL Mádi, B Brutscher, T Schulte-Herbrüggen… - Chemical physics …, 1997 - Elsevier
The experimental observation of spin waves by NMR spectroscopy is reported for a linear
chain consisting of five scalar coupled 13C spins of lysine. Selective excitation of a first spin …

Gaussian to exponential crossover in the attenuation of polarization echoes in NMR

G Usaj, HM Pastawski, PR Levstein - Molecular Physics, 1998 - Taylor & Francis
An ingenious pulse sequence devised by Zhang, S., Meier, BH, and Ernst, RR, 1992, Phys.
Rev. Lett., 69, 2149 reverses the time evolution ('spin diffusion') of the local polarization in a …

Electron–phonon interaction and electronic decoherence in molecular conductors

HM Pastawski, LEFF Torres, E Medina - Chemical physics, 2002 - Elsevier
We perform a brief but critical review of the Landauer picture of transport that clarifies how
decoherence appears in this approach. On this basis, we present different models that allow …