26 citations · 94 across the 15 of their papers we have counts for
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Hamiltonian formulation of the -dimensional theory in a momentum-space Daubechies wavelet basis
Mrinmoy Basak, Debsubhra Chakraborty, Nilmani Mathur +1
We apply the wavelet formalism of quantum field theory to investigate nonperturbative dynamics within the Hamiltonian framework. In particular, we employ Daubechies wavelets in mom…
Hamiltonian Flow Equations in Daubechies Wavelet Basis
Mrinmoy Basak, Raghunath Ratabole
We study the low energy dynamics of a system of two coupled real scalar fields in 1+1 dimensions using the flow equation approach of Similarity Renormalization Group (SRG) in a wav…
Renormalization in Wavelet basis
Mrinmoy Basak, Raghunath Ratabole
Discrete wavelet-based methods promise to emerge as an excellent framework for the non-perturbative analysis of quantum field theories. In this work, we investigate aspects of reno…
Instability in scalar channel of fermion-antifermion scattering amplitude in massless QED_3 and anomalous dimensions of composite operators
Indrajit Mitra, Raghunath Ratabole, H. S. Sharatchandra
Instability in the scalar channel of the fermion-antifermion scattering amplitude in massless QED_3 for number of flavours less than the critical value 128/3π^2 is demonstrated. Th…
Gauge-invariant dressed fermion propagator in massless QED_3
Indrajit Mitra, Raghunath Ratabole, H. S. Sharatchandra
The infrared behaviour of the gauge-invariant dressed fermion propagator in massless QED_3 is discussed for three choices of dressing. It is found that only the propagator with the…
Gauge dependence of the infrared behaviour of massless QED_3
Indrajit Mitra, Raghunath Ratabole, H. S. Sharatchandra
Using the Zumino identities it is shown that in a class of non-local gauges, massless QED_3 has an infrared behaviour of a conformal field theory with a continuously varying anomal…