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Stong Interection, Neutron Star, Hybrid Star, Chiral Phase Transition, Transport Properties, Quark-Hadron Phase Transition
India

Biography

My research interest is to study the strongly interacting matter under extreme conditions.

I am working on the properties of strongly interacting matter under extreme conditions. In my PhD research work, we have studied chiral phase transition of quark matter (QM) matter at extremely high temperature at zero baryon chemical potential and non-zero chiral chemical potential. We have also worked on some transport properties like electrical conductivity, thermal conductivity and seebeck effects of quark matter (QM) at non-zero temperature and non-zero chemical potential in the presence of external magnetic fields. Recently, we have worked on the quark-hadron phase transition at zero temperature and extremely high density (few times nuclear saturation density, $\rho_0=0.16 per fermi^3$) in the context of neutron/hybrid stars. We have studied non-radial oscillation modes ( $g$ and $f$ modes ) in neutron/hybrid stars. We also find robust universal relations, relating the mass, radius and non-radial oscillation ($f$) mode frequency of the neutron stars. The robust universal relations are found by considering 30 million EOSs (DDB and DDB-Hyb). The DDB set is the set of relativistic mean field (RMF) equation of states (EOSs) where the couplings between baryons and mesons are density dependent and fixed by Bayesian analysis (B stands for Bayesian analysis) while the DDB-Hyb set is the set where low density part of EOS is the DDB EOS and high density (asymptotically high density) pQCD EOS, the intermediate region is interpolated by two monotropes.

Future plan of Research : The non-radial oscillation modes in neutron stars are very much sensitive and directly related to the matter inside it. As if there is a quark-hadron phase transition the frequency of the mode enhances. So there might be a possibility of a correlation between the non-radial oscillation modes to the neutron star matter properties, like symmetric matter properties, asymmetric matter properties, mass, radius, tidal deformiability of the neutron star etc. I would like to study the orrelations of non-radial oscillation frequencies with neutron stars matter properties and mass, radius, tidal deformiability of neutron stars.

Activities

Employment (1)

Institute of Physics, Bhubaneshwar: Bhubaneswar, IN

2024-10-21 to 2026-10-20 | Postdoctoral Fellow (Nuclear Theory Group)
Employment
Source: Self-asserted source
Deepak Kumar

Education and qualifications (5)

Physical Research Laboratory: Ahmedabad, Gujarat, IN

(THEPH)
Qualification
Source: Self-asserted source
Deepak Kumar

Indian Institute of Science Education and Research, Bhopal: Bhopal, Madhya Pradesh, IN

2023-06-01 to present | Research Associate (Physics)
Education
Source: Self-asserted source
Deepak Kumar

Physical Research Laboratory: Ahmedabad, Gujarat, IN

2017-07-15 to present | PhD (Theory Division)
Education
Source: Self-asserted source
Deepak Kumar

Banaras Hindu University Faculty of Science: Varanasi, Uttar Pradesh, IN

2014-07-15 to 2016-07-15 | M.Sc. (Physics)
Education
Source: Self-asserted source
Deepak Kumar

Banaras Hindu University Faculty of Science: Varanasi, Uttar Pradesh, IN

2011-07-15 to 2014-07-15 | B.Sc. (Physics)
Education
Source: Self-asserted source
Deepak Kumar

Works (10)

Quark Matter in the Core of Neutron Stars and Its Consequences on Non-radial Oscillations

Springer Proc.Phys.
2024-07-17 | Conference paper
OTHER-ID: 2809554
Contributors: Kumar, Deepak; Mishra, Hiranmaya; Malik, Tuhin
Source: check_circle
INSPIRE-HEP
grade
Preferred source (of 2)‎

The footprint of nuclear saturation properties on the neutron star $f$ mode oscillation frequencies: a machine learning approach

2024-02 | Journal article
Contributors: Kumar, Deepak; Malik, Tuhin; Mishra, Hiranmaya
Source: Self-asserted source
Deepak Kumar
grade
Preferred source (of 3)‎

Robust universal relations in neutron star asteroseismology

Phys.Rev.D
2023-10-09 | Journal article | Author
OTHER-ID: 2668880
Contributors: Deepak Kumar; TUHIN MALIK; Mishra, Hiranmaya; C Providência
Source: check_circle
INSPIRE-HEP
grade
Preferred source (of 3)‎

Non-radial oscillation modes in hybrid stars: consequences of a mixed phase

Journal of Cosmology and Astroparticle Physics
2023-02-01 | Journal article
Part of ISSN: 1475-7516
Contributors: Deepak Kumar; Hiranmaya Mishra; Tuhin Malik
Source: Self-asserted source
Deepak Kumar
grade
Preferred source (of 3)‎

Thermoelectric transport coefficients of quark matter

The European Physical Journal C
2022-01 | Journal article
Part of ISSN: 1434-6044
Part of ISSN: 1434-6052
Source: Self-asserted source
Deepak Kumar
grade
Preferred source (of 3)‎

Dynamics of QCD matter — current status

International Journal of Modern Physics E
2021-02 | Journal article
Part of ISSN: 0218-3013
Part of ISSN: 1793-6608
Source: Self-asserted source
Deepak Kumar
grade
Preferred source (of 3)‎

Chiral susceptibility in the Nambu–Jona-Lasinio model: A Wigner function approach

Phys.Rev.D
2019-11-27 | Journal article
OTHER-ID: 1746593
Contributors: Das, Arpan; Kumar, Deepak; Mishra, Hiranmaya
Source: check_circle
INSPIRE-HEP
grade
Preferred source (of 3)‎

Analyzing the dense matter equation of states in the light of the compact object HESS J1731-347

Journal article
OTHER-ID: 2843281
Contributors: Tewari, Skund; Chatterjee, Sagnik; Kumar, Deepak; Mallick, Ritam
Source: check_circle
INSPIRE-HEP

CP violation in cold dense quark matter and axion effects on the non-radial oscillations of neutron stars

Journal article
OTHER-ID: 2853365
Contributors: Kumar, Deepak; Mishra, Hiranmaya
Source: check_circle
INSPIRE-HEP

The breaking of $f-$mode universal relation in proto-neutron stars

Journal article
OTHER-ID: 2824870
Contributors: Kumar, Deepak; Karan, Asit; Verma, Anshuman; Mishra, Hiranmaya; Mallick, Ritam
Source: check_circle
INSPIRE-HEP