The Quantum Structure of Space and Time (293 pages)

20 The Quantum Structure of Space and Time S. Weinberg In the story about Einstein and Bohr’s famous argument, what both- ers me ...

Session 2 Quant urn Mechanics Chair: David Gross, KITP, Santa Barbara, USA Rapporteur: James B. Hurtle, UCSB, USA Scientific sec ...

22 The Quantum Structure of Space and Time must be Lorentzian with one, and only one, time direction. The essay concludes by rai ...

Quantum Mechanics^23 Fig. 2.1 The two-slit experiment. An electron gun at left emits an electron traveling towards a screen with ...

24 The Quantum Structure of Space and Time theory without an equivalent 3+1 formulation in terms of states on spacelike sur- fac ...

Quantum Mechanics 25 v) 3 c x 14000,. ,. ,. ,. , , 1 4000 spectrometer background level 58 59 60 61 62 63 position of 3rd gratin ...

(^26) The Quantum Structure of Space and Time highly non-classical theory of particle dynamics whose statistical predictions lar ...

Quantum Mechanics 27 Table 2.1 P Newtonian Physics Special Relativity General Relativity Quantum Gravity M-theory, Loop quantum ...

28 The Quantum Structure of Space and Time discussion manageable we focus on a simple model universe of particles moving in a ve ...

Quantum Mechanics 29 Each coarse-grained history specifies an orbit where the center-of-mass position is localized to a certain ...

30 The Quantum Structure of Space and Time A II Fig. 2.3 The origin of states on a spacelike surface. These spacetime diagrams a ...

Quantum Mechanics 31 single-valued in time can be factored across constant time surfaces. A formula expressing this idea is The ...

32 The Quantum Structure of Space and Time 2.1.7 Generalized Quantum Theory In generalizing usual quantum mechanics to deal with ...

Quantum Mechanics 33 2.1.8 The low energy, effective theory of quantum gravity is a quantum version of general relativity with a ...

34 The Quantum Structure of Space and Time false. The notion of coarse-grained history described above therefore supplies the mo ...

Quantum Mechanics 35 fixed background spacetime with the geometry specified by &p(x). This is familiar territory. Field hist ...

36 The Quantum Structure of Space and Tame 0 Every fine-grained history of the effective theory is a coarse-grained history of T ...

Quantum Mechanics I I ? unitary evolution 37 Classical Physics I Spacetime not I 17 Fundament a1 I Spacetime and Histories S ...

(^38) The Quantum Structure of Space and Time The chart can be read in two ways. Reading from the bottom up, the boxes on the le ...

Quantum Mechanics^39 Fig. 2.4 The emergence of the Lorentz signature (-,+,+,+) of spacetime. The semiclassical geometry describi ...