Energy and momentum relaxation of heavy fermion in dense and warm plasma

Sarkar, Sreemoyee; Dutt-Mazumder, Abhee K.

doi:10.1103/physrevd.82.056003

Cited by 15 publications

(37 citation statements)

References 27 publications

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“…From (21) it is important to note that the hard sector involves even higher power. The entire contribution at the leading order then comes from the soft sector alone, and Braaten and Yuan's prescription is not required in case of the ultradegenerate plasma [2]. The final expression of reveals that with the magnetic interaction changes significantly from the Fermi liquid result.…”

Section: Drag and Diffusion Coefficientsmentioning

confidence: 99%

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Role of Magnetic Interaction in Dense Plasma

Sarkar

Pal

Dutt-Mazumder

2013

Advances in High Energy Physics

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Quasiparticle excitations and associated phenomena of energy and momentum transfer rates have been calculated in terms of the drag and the diffusion coefficients exposing clearly the dominance of the magnetic interaction over its electric counterpart. The results have been compared with the finite temperature results highlighting the similarities and dissimilarities in the two extreme regimes of temperature and density. Non-Fermi-liquid behavior of various physical quantities like neutrino mean free path and thermal relaxation time due to the inclusion of magnetic interaction has clearly been revealed. All the results presented in the current review are pertinent to the degenerate and ultradegenerate plasma.

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Section: Drag and Diffusion Coefficientsmentioning

confidence: 99%

“…In high temperature case they are known to be connected via the Einstein relation. We address this issue to see the scaling behavior of these quantities in the domain of zero and high temperature plasma [2].…”

Section: Introductionmentioning

confidence: 99%

Role of Magnetic Interaction in Dense Plasma

Sarkar

Pal

Dutt-Mazumder

2013

Advances in High Energy Physics

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“…In fact, it has been seen that the first two leading order contributions in the expressions for the fermion damping rate in ultradegenerate plasma come from the transverse sector alone. Similar behaviour has also been reported in [6,7] where the authors have studied the non-Fermi liquid behaviour(NFL) of the drag and diffusion coefficient in degenerate plasma. A more elaborate discussion on the NFL aspects of the cold and dense QED and QCD plasma has been presented in [8].…”

Section: Introductionmentioning

confidence: 49%

“…For quasi-particles with momenta close to the Fermi momentum p f (i) where i denotes the quark flavor, the one-loop self-energy is dominated by the soft gluon exchanges [5,6]. For the calculation of the MFP and emissivity one needs to know the modified dispersion relation which is determined as [14][15][16],…”

Section: Formalism a Quark Dispersion Relationmentioning

confidence: 99%

Next-to-leading order non-Fermi-liquid corrections to the neutrino emissivity and cooling of the neutron star

2012

Self Cite

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In this work we derive the expressions of the neutrino mean free path(MFP) and emissivity with non Fermi liquid corrections up to next to leading order(NLO) in degenerate quark matter. The calculation has been performed both for the absorption and scattering processes. Subsequently the role of these NLO corrections on the cooling of the neutron star has been demonstrated. The cooling curve shows moderate enhancement compared to the leading order(LO) non-Fermi liquid result. Although the overall correction to the MFP and emissivity are larger compared to the free Fermi gas, the cooling behavior does not alter significantly. * souvikpriyam.adhya@saha.ac.in † pradipk.roy@saha.ac.in ‡ abhee.dm@saha.ac.in

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“…In that case, the kick velocities are approximately same as obtained by using Eqs. (33), (34), (35) and Eqs. (39), (40), (41) with χ = 1.…”

Section: Kick Velocitymentioning

confidence: 99%

Modifications to the pulsar kick velocity due to magnetic interactions in dense plasma

Adhya¹,

Roy²,

Dutt-Mazumder³

2014

J. Phys. G: Nucl. Part. Phys.

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Abstract. In this work we calculate pulsar kick velocity of magnetized neutron star composed of degenerate quark matter core with non-Fermi liquid (NFL) correction. Both the leading order (LO) and next to leading order (NLO) corrections to the kick velocity have been incorporated. In addition, the NFL corrections to the specific heat of magnetized quark matter have been presented. This has been taken into account to calculate the kick velocity of the neutron star. Results show significant departure from the normal Fermi liquid estimates. The relation between radius and temperature has been shown with kick velocity of 100km/s with and without NFL corrections.

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Energy and momentum relaxation of heavy fermion in dense and warm plasma

Cited by 15 publications

References 27 publications

Role of Magnetic Interaction in Dense Plasma

Role of Magnetic Interaction in Dense Plasma

Next-to-leading order non-Fermi-liquid corrections to the neutrino emissivity and cooling of the neutron star

Modifications to the pulsar kick velocity due to magnetic interactions in dense plasma

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