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Seminar on ‘Fate of κ-Minkowski space-time in non-relativistic (Galilean) and ultra-relativistic (Carrollian) regimes’ by Deeponjit Bose (PhD scholar, Jagiellonian University, Poland) – 29 Sept 2024

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Seminar-Workshop: Seminar on ‘Fate of κ-Minkowski space-time in non-relativistic (Galilean) and ultra-relativistic (Carrollian) regimes’ by Deeponjit Bose (PhD scholar, Jagiellonian University, Poland) – 29 Sept 2024
Type: Seminar-Workshop – Seminar
Event Date: 23 Sep 2024
Venue: MS-102, Prajna Bhavan, RKMVERI, Belur Campus
Campus: Belur Campus
Department: Physics

Here, we present an algebraic and kinematical analysis of non-commutative \kappa-Minkowski spaces within Galilean (non-relativistic) and Carrollian (ultra-relativistic) regimes. Utilizing the theory of Wigner-In\”{o}nu contractions, we begin with a brief review of how one can apply these contractions to the well-known Poincar\'{e} algebra, yielding the corresponding Galilean (both massive and massless) and Carrollian algebras as c \to \infty and c\to 0, respectively. Subsequently, we methodically apply these contractions to non-commutative \kappa-deformed spaces, revealing compelling insights into the interplay among the non-commutative parameters a^\mu (with |a^\nu| being of the order of Planck length scale) and the speed of light c as it approaches both infinity and zero. Our exploration predicts a sort of “branching” of the non-commutative parameters a^\mu, leading to the emergence of a novel length scale and time scale in either limit. Furthermore, our investigation extends to the examination of curved momentum spaces and their geodesic distances in appropriate subspaces of the \kappa-deformed Newtonian and Carrollian space-times. We finally delve into the study of their deformed dispersion relations, arising from these deformed geodesic distances, providing a comprehensive understanding of the nature of these space-times.

Activity Coordinator(s)
Faculty/Staff Name Details
Bobby Ezhuthachan (Primary Coordinator) Physics – Belur Campus
Participant Information
RKMVERI Faculty & Staff 7 (Male: 6, Female: 1)
RKMVERI Students 32 (Male: 25, Female: 7)

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