19 citations · 86 across the 28 of their papers we have counts for
10 papers · 1 filter
Quantal-classical fluctuation relation and the second law of thermodynamics: The quantum linear oscillator
Ilki Kim
In this work, we study the fluctuation relation and the second law of thermodynamics within a quantum linear oscillator externally driven over the period of time t = tau. To go bey…
Non-negative Wigner-like distributions and Renyi-Wigner entropies of arbitrary non-Gaussian quantum states: The thermal state of the one-dimensional box problem
Ilki Kim
In this work, we consider the phase-space picture of quantum mechanics. We then introduce non-negative Wigner-like (operational) distributions \widetilde{\mathcal W}_{rho;alpha}(x,…
Renyi-alpha entropies of quantum states in closed form: Gaussian states and a class of non-Gaussian states
Ilki Kim
In this work, we study the Renyi-alpha entropies S_{alpha}(\hat{rho}) = (1 - alpha)^{-1} \ln{Tr(\hat{rho}^{alpha})} of quantum states for N bosons in the phase-space representation…
Ab initio relaxation times and time-dependent Hamiltonians within the steepest-entropy-ascent quantum thermodynamic framework
ILki Kim, Michael R. von Spakovsky
Quantum systems driven by time-dependent Hamiltonians are considered here within the framework of steepest-entropy-ascent quantum thermodynamics (SEAQT) and used to study the therm…
Heat Engines running upon a Non-Ideal Fluid Model with Higher Efficiencies than upon the Ideal Gas Model
Abhimanyu S Madakavil, Ilki Kim
We consider both Otto and Diesel heat engine cycles running upon the working substances modeled by the van der Waals fluid as a simple non-ideal gas model. We extensively perform t…
Optimization of cooling load in quantum self-contained fridge based on endoreversible approach
ILki Kim, Soumya S. Patnaik
We consider a quantum self-contained fridge consisting of three qubits interacting with three separate heat reservoirs, respectively, and functioning without any external controls.…