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We study a quantum harmonic Otto engine under a hot squeezed thermal reservoir with asymmetry between the two adiabatic branches introduced by considering different speeds of the driving protocols. In the first configuration, the driving protocol for
Externí odkaz:
http://arxiv.org/abs/2411.16115
Autor:
Singh, Varinder, Shaghaghi, Vahid, Pandit, Tanmoy, Beetar, Cameron, Benenti, Giuliano, Rosa, Dario
We present a detailed study of an asymmetrically driven quantum Otto engine with a time-dependent harmonic oscillator as its working medium. We obtain analytic expressions for the upper bounds on the efficiency of the engine for two different driving
Externí odkaz:
http://arxiv.org/abs/2310.06512
Autor:
Bera, Mohit Lal, Pandit, Tanmoy, Chatterjee, Kaustav, Singh, Varinder, Lewenstein, Maciej, Bhattacharya, Utso, Bera, Manabendra Nath
A bath with a negative temperature is a subject of intense debate in recent times. It raises fundamental questions not only on our understanding of negative temperature of a bath in connection with thermodynamics but also on the possibilities of cons
Externí odkaz:
http://arxiv.org/abs/2305.01215
Publikováno v:
Entropy 25, 430 (2023)
We consider a micromaser model of a quantum battery, where the battery is a single mode of the electromagnetic field in a cavity, charged via repeated interactions with a stream of qubits, all prepared in the same non-equilibrium state, either incohe
Externí odkaz:
http://arxiv.org/abs/2212.13417
We investigate the thermodynamic uncertainty relation (TUR), \textit{i.e.} a trade-off between entropy production rate and relative power fluctuations, for nondegenerate three-level and degenerate four-level maser heat engines. In the nondegenerate c
Externí odkaz:
http://arxiv.org/abs/2211.08377
We investigate the optimal performance of quantum Otto engine and refrigeration cycles of a time-dependent harmonic oscillator under a trade-off figure of merit for both adiabatic and nonadiabatic (sudden-switch) frequency modulations. For heat engin
Externí odkaz:
http://arxiv.org/abs/2207.03374
Autor:
Singh, Hasandeep, Singh, Tanveer, Singh, Varinder, Singh, Brahmjot, Kaur, Sarabjit, Ahmad, Sheikh F., Al-Mazroua, Haneen A., Singh, Balbir
Publikováno v:
In International Immunopharmacology 25 December 2024 143 Part 3
Publikováno v:
In International Immunopharmacology 25 December 2024 143 Part 3
Autor:
Kanotra, Muskan, Kaur, Rupinder, Pasricha, Chirag, Kumari, Pratima, Singh, Ravinder, Singh, Varinder, Ahmad, Sheikh F.
Publikováno v:
In Molecular Genetics and Metabolism Reports December 2024 41
Autor:
Dwivedi, Shashi Prakash a, ⁎⁎⁎, Chaudhary, Vijay b, Sharma, Shubham c, d, e, ⁎, Pattanaik, Ashutosh f, Kumar, P Vijaya g, Bisht, Yashwant Singh h, Singh, Varinder i, Abbas, Mohamed j, k, Kozak, Dražan l, Lozanovic, Jasmina m, ⁎⁎, Kumar, Abhinav n, o, p
Publikováno v:
In Journal of Materials Research and Technology November-December 2024 33:5874-5887