Výsledky vyhledávání

Akademický článek

Using Host Galaxy Photometric Redshifts to Improve Cosmological Constraints with Type Ia Supernovae in the LSST Era

Autor: Ayan Mitra, Richard Kessler, Surhud More, Renee Hlozek, The LSST Dark Energy Science Collaboration

Publikováno v: The Astrophysical Journal, Vol 944, Iss 2, p 212 (2023)

We perform a rigorous cosmology analysis on simulated Type Ia supernovae (SNe Ia) and evaluate the improvement from including photometric host galaxy redshifts compared to using only the “ z _spec ” subset with spectroscopic redshifts from the ho

Externí odkaz: https://doaj.org/article/48e95cfe154c4422b2d3695b3b84b61e

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Akademický článek

Constraining the Swiss-Cheese IR-Fixed Point Cosmology with Cosmic Expansion

Autor: Ayan Mitra, Vasilios Zarikas, Alfio Bonanno, Michael Good, Ertan Güdekli

Publikováno v: Universe, Vol 7, Iss 8, p 263 (2021)

A recent work proposed that the recent cosmic passage to a cosmic acceleration era is the result of the existence of small anti-gravity sources in each galaxy and clusters of galaxies. In particular, a Swiss-cheese cosmology model, which relativistic

Externí odkaz: https://doaj.org/article/e8e1eca5a4954b1d87dac041bfab74cd

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Akademický článek

Bound on Efficiency of Heat Engine from Uncertainty Relation Viewpoint

Autor: Pritam Chattopadhyay, Ayan Mitra, Goutam Paul, Vasilios Zarikas

Publikováno v: Entropy, Vol 23, Iss 4, p 439 (2021)

Quantum cycles in established heat engines can be modeled with various quantum systems as working substances. For example, a heat engine can be modeled with an infinite potential well as the working substance to determine the efficiency and work done

Externí odkaz: https://doaj.org/article/157e58645dca4d44ade8a5959b60b669

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Akademický článek

Binary Black Hole Information Loss Paradox and Future Prospects

Autor: Ayan Mitra, Pritam Chattopadhyay, Goutam Paul, Vasilios Zarikas

Publikováno v: Entropy, Vol 22, Iss 12, p 1387 (2020)

Various techniques to tackle the black hole information paradox have been proposed. A new way out to tackle the paradox is via the use of a pseudo-density operator. This approach has successfully dealt with the problem with a two-qubit entangle syste

Externí odkaz: https://doaj.org/article/69a0ebf219f842319f56ae5d66704e99

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Phonology

Autor: Lucy Spence, Ayan Mitra