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- Tata Institute of Fundamental ResearchIN45 papers
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13 papers · 1 filter
Bounded Treewidth and Space-Efficient Linear Algebra
Nikhil Balaji, Samir Datta
Motivated by a recent result of Elberfeld, Jakoby and Tantau showing that properties are Logspace computable on graphs of bounded tree-width, we consider the complex…
A critique of recent semi-classical spin-half quantum plasma theories
Govind S. Krishnaswami, Rajaram Nityananda, Abhijit Sen +1
Certain recent semi-classical theories of spin-half quantum plasmas are examined with regard to their internal consistency, physical applicability and relevance to fusion, astrophy…
On a lightlike limit of entanglement
K. Narayan
We study certain classes of deformations of theories arising in gauge/string realizations of nonrelativistic holography, some of which pertain to Lifshitz theories w…
Asymptotic symmetries and subleading soft graviton theorem
Miguel Campiglia, Alok Laddha
Motivated by the equivalence between soft graviton theorem and Ward identities for the supertranslation symmetries belonging to the BMS group, we propose a new extension (different…
Higgs Mechanism and the Added-Mass Effect
Govind S. Krishnaswami, Sachin S. Phatak
In the Higgs mechanism, mediators of the weak force acquire masses by interacting with the Higgs condensate, leading to a vector boson mass matrix. On the other hand, a rigid body…
Ontology and Quantum Mechanics
N. D. Hari Dass
The issue of ontology in quantum mechanics, or equivalently the issue of the reality of the wave function is critically examined within standard quantum theory. It is argued that t…