596 citations
- Indian Centre for Space PhysicsIN143 papers
- Bose InstituteIN67 papers
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- Tata Institute of Fundamental ResearchIN58 papers
- Indian Institute of Science BangaloreIN53 papers
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- Physical Research LaboratoryIN46 papers
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4 papers · 2 filters
Fractional Periodicity of Persistent Currents: A Signature of Broken Internal Symmetry
P. Singha Deo, P. Koskinen, M. Koskinen +1
We show from the symmetries of the many body Hamiltonian, cast into the form of the Heisenberg (spin) Hamiltonian, that the fractional periodicities of persistent currents are due…
Landau diamagnetism revisited
S. Dattagupta, A. M. Jayannavar, N. Kumar
The problem of diamagnetism, solved by Landau, continues to pose fascinating issues which have relevance even today. These issues relate to inherent quantum nature of the problem,…
Electron correlation effects in the presence of non-symmetry dictated nodes
P. Singha Deo
We numerically study the effect of non-symmetry-dictated-nodes (NSDN) on electron correlation effects for spinless electrons. We find that repulsive interaction between electrons c…
Scattering phase shifts in quasi-one-dimension
P. Singha Deo, Swarnali Bandopadhyay, Sourin Das
Scattering of an electron in quasi-one dimensional quantum wires have many unusual features, not found in one, two or three dimensions. In this work we analyze the scattering phase…