Aspects of graviton detection: graviton emission and absorption by atomic hydrogen
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چکیده
منابع مشابه
Aspects of Graviton Detection: Graviton Emission and Absorption by Atomic Hydrogen
Graviton absorption cross sections and emission rates for hydrogen are calculated by both semi-classical and field theoretic methods. We point out several mistakes in the literature concerning spontaneous emission of gravitons and related phenomena, some of which are due to a subtle issue concerning gauge invariance of the linearized interaction Hamiltonian. PACS: 03.65.Sq, 04.30.Db, 04.30.Nk, ...
متن کاملGraviton Emission and Absorption by Atomic Hydrogen
Graviton absorption cross sections and emission rates for hydrogen are calculated by both semi-classical and field theoretic methods. We point out several mistakes in the literature concerning spontaneous emission of gravitons and related phenomena, some of which are due to a subtle issue concerning gauge invariance of the linearized interaction Hamiltonian. PACS: 03.65.Sq, 04.30.Db, 04.30.Nk, ...
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The equations for the evolution of a homogeneous brane world that emits gravitons at early times, and into a non-Z2 symmetric bulk, are derived using an AdSVaidya spacetime approximation. The behaviour of the black hole mass parameters either side of the brane is analysed, and it is found that in general graviton emission leads to a decrease in the non-Z2 symmetry. However, the behaviour of the...
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The quantum effective theory of general relativity, independent of the eventual full theory at high energy, expresses graviton-graviton scattering at one loop order O ( E4 ) with only one parameter, Newton’s constant. Dunbar and Norridge have calculated the one loop amplitude using string based techniques. We complete the calculation by showing that the 1 d−4 divergence which remains in their r...
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ژورنال
عنوان ژورنال: Classical and Quantum Gravity
سال: 2006
ISSN: 0264-9381,1361-6382
DOI: 10.1088/0264-9381/23/20/006