1,128 research outputs found

    Neither Peace Nor Love or Dream’: Man’s Quest for the Meaning of Life in Jibanananda

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    The primary quest of humanity is for happiness and the meaning of life Most people throughout life remain unaware of the individual self the foundation of one s identity and tread on the known ways of the society to make life meaningful Consequently the being of such a person fails to come to existence Only a few are ever able to become conscious of this self in moments of pure reflection enabled by a complete divorce from the social presence The consciousness leads to a concurrent awareness of the meaninglessness of the world and the true concept of freedom Freedom fetches agony with the realization of the sole responsibility of one s choice A person is then either on the way to construct the meaning of life and find happiness in a personalized way or get crushed at the burden of his anguish The consciousness of the individual self the awareness of personal freedom in a fundamentally meaningless world and the consequence of this consciousness in both its aspects all the facets of man s existential problem have been portrayed in the lines of the great Bengali poet Jibanananda Das 1899 1954 with poignancy and vividness We can at the same time parallel the situation presented in his poetry with his personal lif

    Quantum gauge symmetries in Noncommutative Geometry

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    We discuss generalizations of the notion of i) the group of unitary elements of a (real or complex) finite dimensional C*-algebra, ii) gauge transformations and iii) (real) automorphisms, in the framework of compact quantum group theory and spectral triples. The quantum analogue of these groups are defined as universal (initial) objects in some natural categories. After proving the existence of the universal objects, we discuss several examples that are of interest to physics, as they appear in the noncommutative geometry approach to particle physics: in particular, the C*-algebras M_n(R), M_n(C) and M_n(H), describing the finite noncommutative space of the Einstein-Yang-Mills systems, and the algebras A_F=C+H+M_3(C) and A^{ev}=H+H+M_4(C), that appear in Chamseddine-Connes derivation of the Standard Model of particle physics minimally coupled to gravity. As a byproduct, we identify a "free" version of the symplectic group Sp(n) (quaternionic unitary group).Comment: 31 pages, no figures; v2: minor changes, added reference

    Quantum Brownian Motion on noncommutative manifolds: construction, deformation and exit times

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    We begin with a review and analytical construction of quantum Gaussian process (and quantum Brownian motions) in the sense of [25],[10] and others, and then formulate and study in details (with a number of interesting examples) a definition of quantum Brownian motions on those noncommutative manifolds (a la Connes) which are quantum homogeneous spaces of their quantum isometry groups in the sense of [11]. We prove that bi-invariant quantum Brownian motion can be 'deformed' in a suitable sense. Moreover, we propose a noncommutative analogue of the well-known asymptotics of the exit time of classical Brownian motion. We explicitly analyze such asymptotics for a specific example on noncommutative two-torus A{\theta}, which seems to behave like a one-dimensional manifold, perhaps reminiscent of the fact that A{\theta} is a noncommutative model of the (locally one-dimensional) 'leaf-space' of the Kronecker foliation

    Right Sneutrino Dark Matter and a Monochromatic Photon Line

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    The inclusion of right-chiral sneutrino superfields is a rather straightforward addition to a supersymmetric scenario. A neutral scalar with a substantial right sneutrino component is often a favoured dark matter candidate in such cases. In this context, we focus on the tentative signal in the form of a monochromatic photon, which may arise from dark matter annihilation and has drawn some attention in recent times. We study the prospect of such a right sneutrino dark matter candidate in the contexts of both MSSM and NMSSM extended with right sneutrino superfields, with special reference to the Fermi-LAT data
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