Upendra Kumar
Indian Institute of Technology Guwahati
26 Papers
60 Citations
Upendra Kumar is an academic researcher from Indian Institute of Technology Guwahati. The author has contributed to research in topics: Rabi cycle & Floquet theory. The author has an hindex of 8, co-authored 26 publications. Previous affiliations of Upendra Kumar include Vilnius University & National Institute of Technology, Tiruchirappalli.
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Papers
Quantum Rabi oscillations in graphene
TL;DR: In this article, it was shown that the same phenomenon also occurs in the single-photon limit or even in a vacuum, which is to be expected for conventional Rabi oscillations; however, the prediction that AROs also occur in the singular photon situation means that this notion of ARO is robust and not an artifact of approximations.
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Gallium–Boron–Phosphide ( $$\hbox {GaBP}_{2}$$ GaBP 2 ): a new III–V semiconductor for photovoltaics
TL;DR: In this article, a new III-V semiconducting material with an optimal bandgap for high-efficient photovoltaics with the chemical composition of Gallium-Boron-Phosphide (GBP) was discovered.
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Gallium-Boron-Phosphide (GaBP$_2$): A New III-V Semiconductor for photovoltaics.
TL;DR: In this paper, a new III-V semiconducting material having an optimal bandgap for high efficient photovoltaics with the chemical composition of Gallium-Boron-Phosphide(GaBP$_2), space group: Pna2$_1$).
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Band-anisotropy induced Bloch–Siegert shift in graphene
TL;DR: In this paper, the authors studied the change in the resonance condition of anomalous Rabi oscillations that are peculiar to graphene and found that the change is quite substantial (in percentage terms, actually infinite), lending credence to the claim that the anomalous rabi oscillation is sensitive to qualitative changes in the low energy band structure of graphene.
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Band Tuning of a Phosphorene Semiconductor via Floquet Theory
TL;DR: In this article, the nature of collapse-revival and Bloch-Siegert shift phenomena have been studied under an intense applied quantized electromagnetic field for graphene and phosphorene.
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