{"id":9387,"date":"2023-01-10T14:46:57","date_gmt":"2023-01-10T06:46:57","guid":{"rendered":"https:\/\/www2.phy.ntnu.edu.tw\/?p=9387"},"modified":"2023-02-17T12:29:37","modified_gmt":"2023-02-17T04:29:37","slug":"111-2-seminar-1120222","status":"publish","type":"post","link":"https:\/\/www2.phy.ntnu.edu.tw\/index.php\/2023\/01\/10\/111-2-seminar-1120222\/","title":{"rendered":"111-2 SEMINAR \u4f59\u6d77\u79ae(\u4e2d\u7814\u9662\u7269\u7814\u6240)-1120222"},"content":{"rendered":"\n<figure class=\"wp-block-table\"><table><tbody><tr><td>Time\uff1a1120222 (Wed.) 14:20~16:20 <br>Speaker\uff1aProf.<strong>\u4f59\u6d77\u79ae(Hoi-Lai Yu)<\/strong> <strong>\u4e2d\u592e\u7814\u7a76\u9662\u7269\u7406\u7814\u7a76\u6240\/Institute of Physics, Academia Sinica<\/strong> <br>Title\uff1a<strong>Intrinsic Time Geometrodynamics: At One With T he Universe<\/strong> <br>Abstract\uff1a<br>Quantum Gravity needs only c-number time and correct Initial Data plus a dimension 3 Cotton-York tensor with a dimensionless coupling constant, g, which is special to 3d to become successful &amp; renormalizable. The following topics will be covered: <br>1) 4-covariance and time are mutually exclusive <br>2) Quantum space-time doesn\u2019t exist, only quantum evolution of space w.r.t intrinsic time <br>3) Theories of Gravitation needs only 3d Diffeomorphism invariance &amp; scheme to generate initial data that solves all constraints; QM \u2295 Relativity is not QF T but QG <br>4) Two types of gauge structures exist: a)Fibre bundle type; infinite tensor product of the gauge group at each point b)Diffeomorphism group which does not exhibit fibre bundle structure The fundamental physics is transversality at work <br>5) Intrinsic Time Geometrodynamics explains time dilation &amp; length contraction effects dynamically observed in Special Relativity <br>6) Quantum Gravity with Cotton-York tensor is renormalizable &amp; Time is too robust to fluctuate <br>7) The square-root-form Hamiltonian may look peculiar, it produces the correct physics &amp; being well defined <br>8) Universe born via Chern-Simon instanton tunneling with scale invariant primordial Gravitation Wave spectrum <br>Place\uff1aS101, Gongguan Campus, NTNU<\/td><\/tr><\/tbody><\/table><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Time\uff1a1120222 (Wed.) 14:20~16:20 Speaker\uff1aProf.\u4f59\u6d77\u79ae(Hoi-La 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