79 citations · 160 across the 9 of their papers we have counts for
10 papers
Lecture notes on classical and quantum non-Markovianity
Graeme Pleasance
The study of non-Markovian quantum processes has attracted significant interest in recent decades, giving rise to several competing notions of quantum non-Markovianity. These notes…
Dissipative realization of a quantum distance-based classifier using open quantum walks
Pedro Linck, Graeme Pleasance, Francesco Petruccione +1
Open quantum walks (OQWs) constitute a class of quantum walks whose dynamics are entirely driven by interactions with the environment. It is well known that OQWs provide a general…
High-temperature limit penalizing high-frequency quantum fluctuations
Graeme Pleasance, Erik Aurell, Francesco Petruccione
We revisit the Caldeira-Leggett model of quantum Brownian motion with Ohmic spectral density, and derive an additional contribution to the decoherence kernel in a new high-temperat…
Non-Markovianity in collision models with initial intra-environment correlations
Graeme Pleasance, Angel E. Neira, Marco Merkli +1
Collision models (CMs) describe an open system interacting in sequence with elements of an environment, termed ancillas. They have been established as a useful tool for analyzing n…
Decoherence from quantum spacetime noise: An open-systems framework with application to neutrino oscillations
Partha Nandi, Tiasha Bhattacharyya, A. S. Majumdar +2
We present a general open-quantum-systems framework to model decoherence induced by stochastic Planck-scale fluctuations of spacetime, focusing on the kappa-Minkowski noncommutativ…
Nonequilibrium quantum heat transport between structured environments
Graeme Pleasance, Francesco Petruccione
We apply the hierarchical equations of motion technique to analyzing nonequilibrium heat transport in a spin-boson type model, whereby heat transfer through a central spin is media…
Cyclic quantum engines enhanced by strong bath coupling
Camille L. Latune, Graeme Pleasance, Francesco Petruccione
While strong system-bath coupling produces rich and interesting phenomena, applications to quantum thermal engines have been so far pointing mainly at detrimental effects. The deli…
Pseudomode description of general open quantum system dynamics: non-perturbative master equation for the spin-boson model
Graeme Pleasance, Francesco Petruccione
We outline a non-perturbative approach for simulating the behavior of open quantum systems interacting with a bosonic environment defined by a generalized spectral density function…
Generalized theory of pseudomodes for exact descriptions of non-Markovian quantum processes
Graeme Pleasance, Barry M. Garraway, Francesco Petruccione
We develop an exact framework to describe the non-Markovian dynamics of an open quantum system interacting with an environment modeled by a generalized spectral density function. T…
Application of quantum Darwinism to a structured environment
Graeme Pleasance, Barry M. Garraway
Quantum Darwinism extends the traditional formalism of decoherence to explain the emergence of classicality in a quantum universe. A classical description emerges when the environm…