221 citations
5 papers
Comparison of metal-amino acid interaction in Phe-Ag and Tyr-Ag complexes by spectroscopic measurements
Achintya Singha, Swagata Dasgupta, Anushree Roy
In this article, we have compared the metal-amino acid interactions in Tyr-Ag and Phe-Ag complexes through pH dependent SERS measurements. By analyzing the variation in relative in…
Can the rotation of the dark matter halo of our galaxy be detected through its effect on the cosmic microwave background polarisation?
Partha Nag, Somnath Bharadwaj, Sayan Kar
The proposition that dark matter halos possess angular momentum, though widely accepted, is a theoretical prediction which has, till date, not been observationally verified. The gr…
An alternate model for protective measurements of two-level systems
Anirban Das, N. D. Hari Dass
In this article we propose an alternate model for the so called {\it protective measurements}, more appropriately {\it adiabatic measurements} of a spin 1/2 system where the {\it a…
On using visibility correlations to probe the HI distribution from the dark ages to the present epoch I: Formalism and the expected signal
Somnath Bharadwaj, SK. Saiyad Ali
Redshifted 21 cm radiation originating from the cosmological distribution of neutral hydrogen (HI) appears as a background radiation in low frequency radio observations. The angula…
The CMBR fluctuations from HI perturbations prior to reionization
Somnath Bharadwaj, Sk. Saiyad Ali
Loeb and Zaldarriaga (2003) have recently proposed that observations of the CMBR brightness temperature fluctuations produced by the HI inhomogeneities prior to reionization hold t…