"Quantum gravity"의 두 판 사이의 차이
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Pythagoras0 (토론 | 기여) (→메타데이터: 새 문단) |
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** in the end, do we modify gravity and relativity, or do we modify quantum mechanics, or perhaps both? | ** in the end, do we modify gravity and relativity, or do we modify quantum mechanics, or perhaps both? | ||
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2020년 12월 28일 (월) 04:12 판
Puzzles of (quantum) gravity
- The effective, semiclassical theory of gravity has raised lots of fascinating questions, some old and some new:
- is gravity really just the dynamics of spacetime geometry?
- why do we live in a huge universe?
- what becomes of spacetime at shortest distances?
- is there a statistical explanation of black-hole entropy?
- is spacetime physics holographic?
- what is the nature of dark matter and dark energy { is it exotic matter, exotic gravity, or perhaps a mixture of both?
- in the end, do we modify gravity and relativity, or do we modify quantum mechanics, or perhaps both?
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- ID : Q234181