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Speaker |
Banerjee, Shreya |
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Coauthors |
Banerjee, Shreya; Bera, Sayantani; Singh, Tejinder. P |
| Talk Title |
Cosmological Constant, Quantum Measurement, And The Problem Of Time |
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Abstract |
Three of the big puzzles of theoretical physics are the following: (i) There is apparently no time evolution in the dynamics of quantum general relativity, because the allowed quantum states must obey the Hamiltonian constraint. (ii) During a quantum measurement, the state of the quantum system randomly collapses from being in a linear superposition of the eigenstates of the measured observable, to just one of the eigenstates, in apparent violation of the predictions of the deter- ministic, linear Schro ̈dinger equation. (iii) The observed value of the cosmological constant is exceedingly small, compared to its natural value, creating a serious fine-tuning problem. In this essay we propose a novel idea to show how the three problems help solve each other. [This essay received an honourable mention in the Gravity Research Foundation 2015 Essay Contest. arXiv:1505.03805 (2015), submitted to Int. J. Mod. Phys. D] |
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