95 citations · 175 across the 6 of their papers we have counts for
8 papers
Finite-frequency noise in non-Markovian systems: A Markovian embedding approach
Krzysztof Ptaszynski
I present an approach to calculate the finite-frequency quantum noise in systems strongly coupled to structured reservoirs based on the Markovian embedding. This technique consists…
Entropy Production in Open Systems: The Predominant Role of Intra-Environment Correlations
Krzysztof Ptaszynski, Massimiliano Esposito
We show that the entropy production in small open systems coupled to environments made of extended baths is predominantly caused by the displacement of the environment from equilib…
Thermodynamics of Quantum Information Flows
Krzysztof Ptaszynski, Massimiliano Esposito
We report two results complementing the second law of thermodynamics for Markovian open quantum systems coupled to multiple reservoirs with different temperatures and chemical pote…
Coherence-enhanced constancy of a quantum thermoelectric generator
Krzysztof Ptaszynski
The study shows that presence of the quantum coherent, unitary component of the evolution of the system can improve constancy of heat engines, i.e., decrease fluctuations of the ou…
First-passage times in renewal and nonrenewal systems
Krzysztof Ptaszynski
Fluctuations in stochastic systems are usually characterized by the full counting statistics, which analyzes the distribution of the number of events taking place in the fixed time…
Autonomous quantum Maxwell's demon based on two exchange-coupled quantum dots
Krzysztof Ptaszynski
I study an autonomous quantum Maxwell's demon based on two exchange-coupled quantum dots attached to the spin-polarized leads. The principle of operation of the demon is based on t…