Do not mess with time: Probing faster than light travel and
... example, think of the causal loops where at some point ones travels back in time to give to his/her past-self the numbers associated to some lottery. Several solutions have been proposed for such paradoxes (see e.g. for a detailed discussion Ref. 1) we shall here focus on the so called Hawking’s chr ...
... example, think of the causal loops where at some point ones travels back in time to give to his/her past-self the numbers associated to some lottery. Several solutions have been proposed for such paradoxes (see e.g. for a detailed discussion Ref. 1) we shall here focus on the so called Hawking’s chr ...
On Unitary Evolution in Quantum Field Theory in
... hypersurfaces in a one-to-one correspondence, the associated quantum operator should be unitary. In a quantization context this comes from a one-to-one correspondence between classical solutions near the hypersurfaces. Such a correspondence occurs of course in the standard case of spacelike Cauchy h ...
... hypersurfaces in a one-to-one correspondence, the associated quantum operator should be unitary. In a quantization context this comes from a one-to-one correspondence between classical solutions near the hypersurfaces. Such a correspondence occurs of course in the standard case of spacelike Cauchy h ...
2006-11-14-RAL-Wang - Indico
... Implications on the very small as well as the very large As well as causing quantum matter waves to lose coherence at small scales, the conformal gravitational field is responsible for cosmic acceleration linked to inflation and the problem of the cosmological constant. The formula for relating t ...
... Implications on the very small as well as the very large As well as causing quantum matter waves to lose coherence at small scales, the conformal gravitational field is responsible for cosmic acceleration linked to inflation and the problem of the cosmological constant. The formula for relating t ...
The Canonical Approach to Quantum Gravity
... then (Σ, ht ) is isometric to the submanifold Σt with the induced metric. Each three-dimensional leaf Σt now corresponds to an instant of time t, where t is so far only a topological time: it faithfully labels instants in a continuous fashion, but no implication is made as to its relation to actual ...
... then (Σ, ht ) is isometric to the submanifold Σt with the induced metric. Each three-dimensional leaf Σt now corresponds to an instant of time t, where t is so far only a topological time: it faithfully labels instants in a continuous fashion, but no implication is made as to its relation to actual ...
What breaks electroweak symmetry
... Fermi scale calculated in terms of the soft supersymmetry breaking parameters; generated by quantum corrections to the Higgs potential due to the large top quark mass ...
... Fermi scale calculated in terms of the soft supersymmetry breaking parameters; generated by quantum corrections to the Higgs potential due to the large top quark mass ...
What Every Physicist Should Know About String Theory
... We have arrived at one of nature’s rhymes: if we imitate in one dimension what we would expect to do in D = 4 dimensions to describe quantum gravity, we arrive at something that is certainly important in physics, namely ordinary quantum field theory in a possibly curved spacetime. In the example th ...
... We have arrived at one of nature’s rhymes: if we imitate in one dimension what we would expect to do in D = 4 dimensions to describe quantum gravity, we arrive at something that is certainly important in physics, namely ordinary quantum field theory in a possibly curved spacetime. In the example th ...
Simple Resonance Hierarchy for Surmounting Quantum Uncertainty
... relativistic conditions. These criteria are no longer sufficient and indeed our protocol for surmounting the uncertainty principle requires description of a new cosmological regime described by a new set of 12D transformations [22,23] we hope to call the Noetic Transformation because of its relevanc ...
... relativistic conditions. These criteria are no longer sufficient and indeed our protocol for surmounting the uncertainty principle requires description of a new cosmological regime described by a new set of 12D transformations [22,23] we hope to call the Noetic Transformation because of its relevanc ...
beyond space and time - Penn State University
... was missing. Because his calculations presuppose the classical spacetime of general relativity. Ashtekar: "Hawking did not complete Einstein's vision. He only treated matter and energy quantum mechanically." In quantum geometry however spacetime and so also the event horizon of a black hole are quan ...
... was missing. Because his calculations presuppose the classical spacetime of general relativity. Ashtekar: "Hawking did not complete Einstein's vision. He only treated matter and energy quantum mechanically." In quantum geometry however spacetime and so also the event horizon of a black hole are quan ...
Introduction to Strings
... whose tensions scale as the inverse power of the string coupling • It is a BPS object which preserves the half ...
... whose tensions scale as the inverse power of the string coupling • It is a BPS object which preserves the half ...
The beauty of string theory - Institute for Advanced Study
... In a world based on supersymmetry, when a particle moves in space, it also can vibrate in the new fermionic dimensions. This new kind of vibration produces a cousin or “superpartner” for every elementary particle that has the same electric charge but differs in other properties such as spin. Supersy ...
... In a world based on supersymmetry, when a particle moves in space, it also can vibrate in the new fermionic dimensions. This new kind of vibration produces a cousin or “superpartner” for every elementary particle that has the same electric charge but differs in other properties such as spin. Supersy ...
STRING THEORY
... • The Standard Model uses the discrete fields of Quantum Mechanics, as required by Heisenberg’s Uncertainty Principle. ...
... • The Standard Model uses the discrete fields of Quantum Mechanics, as required by Heisenberg’s Uncertainty Principle. ...
