Zobrazeno 1 - 10
of 134
pro vyhledávání: '"Ponmurugan M"'
Autor:
Nilavarasi, K., Ponmurugan, M.
We consider a finite time quantum heat engine analogous to finite time classical Carnot heat engine with a working substance of spin half particles. We study the efficiency at maximum $\dot{\Omega}$ figure of merit of the quantum heat engine of spin
Externí odkaz:
http://arxiv.org/abs/2312.01710
Autor:
Elden, A. Arul Anne, Ponmurugan, M.
The effect of opposite sign of interactions in a single-walled Ising nanotube is investigated using the Wang-Landau algorithm. The thermodynamic observables are calculated from the estimated density of states (DOS) with and without the presence of an
Externí odkaz:
http://arxiv.org/abs/2211.13880
The invariant-based shortcut to adiabaticity for qubit heat engine operates under quantum Otto cycle
Autor:
Kiran, T., Ponmurugan, M.
In this paper, we study the role and relevance of the cost for an invariant-based shortcut to adiabaticity enabled qubit heat engine operates in a quantum Otto cycle. We consider a qubit heat engine with Landau-Zener Hamiltonian and improve its perfo
Externí odkaz:
http://arxiv.org/abs/2203.05911
Autor:
Elden, A. Arul Anne, Ponmurugan, M.
The Monte Carlo analysis for the magnetic response of a single-walled nanotube using the Metropolis and Wang Landau algorithms is reported in the present paper. The nanotube architecture used in the present study utilizes the spin half Ising model wi
Externí odkaz:
http://arxiv.org/abs/2112.12393
Autor:
Nilavarasi, K., Ponmurugan, M.
In the present work, a power law dissipative Carnot like heat engine cycle of two irreversible isothermal and two irreversible adiabatic processes with finite time non-adiabatic dissipation is considered and the efficiency under two optimization crit
Externí odkaz:
http://arxiv.org/abs/2002.01356
Autor:
Nilavarasi, K., Ponmurugan, M.
The present work investigates the generalized extreme bounds of the coefficient of performance (COP) for the power law dissipative Carnot-like refrigerator in the presence of non-adiabatic dissipation under $\chi$ and $\dot{\Omega}$ optimization crit
Externí odkaz:
http://arxiv.org/abs/2001.01485
Autor:
Ponmurugan, M.
We identify a realistic model of thermal heat engines and obtain the generalized efficiency, $\eta= 1- \left(\frac{T_c}{T_h}\right)^{1/\delta}$, where $\delta=1+\frac{1}{\gamma}$ and $\gamma$ is the ratio of thermal heat capacities of working substan
Externí odkaz:
http://arxiv.org/abs/1912.12949
Autor:
Kiran, T., Ponmurugan, M.
Publikováno v:
Phys. Rev. A 103, 042206 (2021)
We investigate the Shortcuts To Adiabaticity (STA) of a quantum harmonic oscillator under time-dependent frictional force, using invariant based inverse engineering method with a class of invariants characterized by a time-dependent frictional coeffi
Externí odkaz:
http://arxiv.org/abs/1910.04575
Autor:
Ponmurugan, M.
We study the efficiency at maximum power of non-adiabatic dissipative (internally dissipative friction in finite time adiabatic processes) Carnot-like heat engines operate in finite time under the power law dissipation regime. We find that the non-ad
Externí odkaz:
http://arxiv.org/abs/1909.02424
Autor:
Ponmurugan, M
We propose a generalized model of a heat engine and calculate the minimum and maximum bounds on the efficiency at maximum power. We obtain a universal form of generalized extreme bounds on the efficiency at maximum power. Our model unifies the bounds
Externí odkaz:
http://arxiv.org/abs/1901.09908