The Quantum Structure of Space and Time (293 pages)

220 The Quantum Structure of Space and Time The failure of short-distant modifications of gravity suggests another strategy: mod ...

Cosmology^22 1 which in one form goes back to Einstein). 0 Nonpropagating four-form field strengths [16, 171. 0 Scalar potential ...

(^222) The Quantum Structure of Space and Time To see the problem, note first that the above mechanisms all involve gravitationa ...

Cosmology 223 different patches in an enormous spatial volume. Indeed, this last mechanism is difficult to evade, if the many va ...

(^224) The Quantum Structure of Space and Time expecting to find it is not a scientific argument but a psychological one:? we wi ...

Cosmology 225 To conclude, we have identified one robust framework for understanding the vac- uum energy: (1) Stuff gravitates, ...

226 The Quantum Structure of Space and Time and the space of vacua is largely or completely connected. Thus all states will be p ...

Cosmology 227 {Jnderlying the above discussion is the fact that we still have no nonperturbative construction of string theory i ...

228 The Quantum Strzlcture of Space and Time different Hamiltonians. We can already see this in the AdS/CFT context, where many ...

Cosmology 229 a substantial fine tuning (even greater than the direct tuning of OQCD) and so rarity in the landscape. However, t ...

(^230) The Quantum Structure of Space and Tame generations is not rare. Again, explaining three generations is equally a problem ...

Cosmology 231 Other questions An obvious question is whether we can understand the supersymmetry-breaking scale (see [63] and re ...

232 The Quantum Structure of Space and Time Now, what is the nonperturbative construction of these eternally inflating states? T ...

Cosmology 233 very different light on many of the questions that we have discussed; it does suggest a possible mechanism for ‘po ...

234 The Quantum Structure of Space and Time [3] T. Padmanabhan, Cosmological constant: The weight of the vacuum, Phys. Rept. 380 ...

Cosmology 235 models of particle physics and cosmology, arXiv:gr-q~/9404011. [28] R. Bousso and J. Polchinski, Quantization of f ...

236 The Quantum Structure of Space and Time (2004) [arXiv:hep-th/04092071. [54] T. Banks, Some thoughts on the quantum theory of ...

Cosmology 237 6.2 Discussion E. Silverstein You have said that you think that dimensionality is conserved and that the supercrit ...

238 The Quantum Structure of Space and Tame went over that very rapidly, and since I spoke for Hartle, and one of the things on ...

Cosmology 239 view we have already answered the prettiest part of the problem, and now we have this more difficult, chemical, co ...