output
20172026
most citedDynamics of a quasiparticle in the -T model: Role of pseudospin polarization and transverse magnetic field on \textbf{\textit{zitterbewegung}}

50 citations

10 papers

astro-ph.CO2026

Unifying the Dark Sector with the New Generalized Chaplygin Gas: Observational Constraints

Abdulla Al Mamon, Andronikos Paliathanasis, Subhajit Saha

In light of recent cosmological observations, we examine a generalized Chaplygin gas model with a redshift-dependent exponent as a framework for describing the dark energy and dark…

gr-qc2026

Comparative Study of Gravity Models with Observational Constraints from \textit{OHD} and \textit{Pantheon+ datasets}

Anirudh Pradhan, S. A. Salve, V. B. Raut +1

The late-time acceleration of the universe remains one of the most significant open problems in modern cosmology. Modified gravity frameworks such as gravity provide a geome…

gr-qc2026

Viaggiu holographic dark energy in light of DESI DR2

Amlan K. Halder, Andronikos Paliathanasis, Stefano Viaggiu +2

We test the cosmological viability of the Viaggiu holographic dark energy (VHDE) model by using late-time observational data. In particular, we place constraints on the free parame…

cond-mat.str-el2026

Interplay of Anisotropy, Dzyaloshinskii Moriya Interaction and Symmetry breaking Fields in a 2D XY Ferromagnet

Rajdip Banerjee, Satyaki Kar

A two dimensional classical ferromagnetic XY model with its bound vortex-antivortex dominated quasi long range ordered phase at low temperatures is a long standing as well as well…

gr-qc2026★ 1 cited

The peculiar case of the Viaggiu holographic dark energy

Somnath Saha, Subhajit Saha, Nilanjana Mahata

We study the plausibility of a holographic dark energy (HDE) model using the form of horizon entropy proposed by Viaggiu in 2014. This form of entropy is a generalization of the us…

astro-ph.CO2026

The Lambert equation of state in light of DESI BAO

Vipin Chandra Dubey, Subhajit Saha, Abdulla Al Mamon

We investigate a unified dark-fluid model whose effective equation of state (EoS) is described by logarithmic and power-law terms involving the Lambert function. The model para…

gr-qc2025★ 6 cited

Eccentricity evolution consistency test to distinguish eccentric gravitational-wave signals from eccentricity mimickers

Sajad A. Bhat, Avinash Tiwari, Md Arif Shaikh +1

Eccentric compact binary coalescences (CBCs) are expected to be observed in current and future gravitational-wave (GW) detector networks. However, it has been recently pointed out…

gr-qc2025

Thermal scalar field stress tensor on a two dimensional black hole and its near horizon properties

Saurav Samanta, Bibhas Ranjan Majhi

We calculate the thermal renormalized energy-momentum tensor components of a massless scalar field, leading to trace anomaly, on a dimensional static black hole spacetime.…

quant-ph2023★ 1 cited

Classification and transformations of quantum circuit decompositions for permutation operations

Ankit Khandelwal, Handy Kurniawan, Shraddha Aangiras +2

Efficient decomposition of permutation unitaries is vital as they frequently appear in quantum computing. In this paper, we identify the key properties that impact the decompositio…

cond-mat.mes-hall2017★ 50 cited

Dynamics of a quasiparticle in the -T model: Role of pseudospin polarization and transverse magnetic field on \textbf{\textit{zitterbewegung}}

Tutul Biswas, Tarun Kanti Ghosh

We consider the - model which provides a smooth crossover between the honeycomb lattice with pseudospin and the dice lattice with pseudospin through the variation…