Creation Ex Nihilo- Without God. Is it possible?
http://www.infidels.org/library/modern/mark_vuletic/vacuum.html
Here is another article on the topic:
http://www.astrosociety.org/pubs/mercury/31_02/nothing.html
Can Something Come from Nothing?
To most people, the claim that something cannot come from nothing is a truism. However, most physicists disagree. Against the claim, they often cite what are variously known as quantum vacuum fluctuations or virtual particles. These are particle-antiparticle pairs that come into existence in otherwise empty space for very brief periods of time, in agreement with the Heisenberg uncertainty relations. [Q1] [Q2] They produce measurable effects, such as the Lamb shift and the Casimir-Polder force.[Q3] [Q4] These particles are not anomalies; they are so common that some physicists argue that if we think of empty space as nothing, then there is no such thing as nothing, because space never is empty—it is always filled with virtual particles.[Q5] In short, if we follow most people in thinking of empty space as nothing, then we have at least one pervasive example of something that can come from nothing.
Can the Universe Come from Nothing?
Virtual particles are constrained to have short lives because they represent an increase in the energy of the universe; Heisenberg's uncertainty principle affords room for sufficiently short-lived virtual particles, but long-lived ones appearing in a universe such as ours would violate the first law of thermodynamics. One might think, then, that quantum vacuum fluctuations cannot have any relevance for the origin of the universe. On the contrary, some physicists, going back at least to Tryon (1973) believe that the entire universe might be a massive quantum vacuum fluctuation.[Q6] The key feature of the universe that would make this possible would be a total energy of zero. You might wonder how the universe could have a total energy of zero. The answer is that gravitational energy is negative—when summed with the positive energy of the matter in the universe, the two quantities may cancel out.[Q7] [Q8] Neither Heisenberg's uncertainty principle, nor the first law of thermodynamics, place any limit on the length of time a quantum vacuum fluctuation of zero total energy could persist, so the longevity of our universe does not rule out a quantum vacuum fluctuation origin.[Q9] The proposal is not that the entire universe appeared in one shot, but that a quantum vacuum fluctuation served as the seed for a local expansion of spacetime, which would automatically generate matter as a side-effect.[Q10] [Q11]
In these kinds of proposals, the quantum vacuum fluctuations occur in empty spacetime. Other proposals, most notably that of Alex Vilenkin, do not involve a preexisting spacetime at all, and rely upon quantum tunneling rather than vacuum fluctuation.[Q12]
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You can read the whole thing here:To most people, the claim that something cannot come from nothing is a truism. However, most physicists disagree. Against the claim, they often cite what are variously known as quantum vacuum fluctuations or virtual particles. These are particle-antiparticle pairs that come into existence in otherwise empty space for very brief periods of time, in agreement with the Heisenberg uncertainty relations. [Q1] [Q2] They produce measurable effects, such as the Lamb shift and the Casimir-Polder force.[Q3] [Q4] These particles are not anomalies; they are so common that some physicists argue that if we think of empty space as nothing, then there is no such thing as nothing, because space never is empty—it is always filled with virtual particles.[Q5] In short, if we follow most people in thinking of empty space as nothing, then we have at least one pervasive example of something that can come from nothing.
Can the Universe Come from Nothing?
Virtual particles are constrained to have short lives because they represent an increase in the energy of the universe; Heisenberg's uncertainty principle affords room for sufficiently short-lived virtual particles, but long-lived ones appearing in a universe such as ours would violate the first law of thermodynamics. One might think, then, that quantum vacuum fluctuations cannot have any relevance for the origin of the universe. On the contrary, some physicists, going back at least to Tryon (1973) believe that the entire universe might be a massive quantum vacuum fluctuation.[Q6] The key feature of the universe that would make this possible would be a total energy of zero. You might wonder how the universe could have a total energy of zero. The answer is that gravitational energy is negative—when summed with the positive energy of the matter in the universe, the two quantities may cancel out.[Q7] [Q8] Neither Heisenberg's uncertainty principle, nor the first law of thermodynamics, place any limit on the length of time a quantum vacuum fluctuation of zero total energy could persist, so the longevity of our universe does not rule out a quantum vacuum fluctuation origin.[Q9] The proposal is not that the entire universe appeared in one shot, but that a quantum vacuum fluctuation served as the seed for a local expansion of spacetime, which would automatically generate matter as a side-effect.[Q10] [Q11]
In these kinds of proposals, the quantum vacuum fluctuations occur in empty spacetime. Other proposals, most notably that of Alex Vilenkin, do not involve a preexisting spacetime at all, and rely upon quantum tunneling rather than vacuum fluctuation.[Q12]
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http://www.infidels.org/library/modern/mark_vuletic/vacuum.html
Here is another article on the topic:
http://www.astrosociety.org/pubs/mercury/31_02/nothing.html
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