Citat:
În prealabil postat de bin000
 ... asta e dovada ca te afli aici doar ca sa faci pe desteptul.
PS:Sa-ti spun un secret : sa faci pe desteptul si sa fii destept nu sunt unul si acelasi lucru.
|
Faptul ca tu nu vrei sa citesti demonstreaza ca fac pe desteptul? Interesant.
In fizica cuantica, "vidul" este starea cuantica cu cea mai putina energie. Nu contine particule, deci energie minima. Vidul fals este o stare cu foarte putina energie, dar nu cu cea mai putina energie. Dar vidul fals are fluctuatii de energie, care pot sa determine un vid adevarat. In momentul in care a creat un vid, acel vid imediat incepe sa se expandeze exponential, in concordanta cu ecuatia Wheeler-DeWitt. Acel vid perfect este un univers, aparut din "nimic".
Poti sa citesti si concluzia studiului, si sa intelegi cate ceva:
In summary, we have presented a mathematical proof that the universe can be created spontaneously from nothing. When a small true vacuum bubble is created by quantum fluctuations of the metastable false vacuum, it can expand exponentially if the ordering factor takes the value p = −2 (or 4). In this way, the early universe appears irreversibly. We have shown that it is the quantum potential that provides the power for the exponential expansion of the bubble. Thus, we can conclude that the birth of the early universe is completely determined by quantum mechanism.
One may ask the question when and how space, time and matter appear in the early universe from nothing. With the exponential expansion of the bubble, it is doubtless that space and time will emerge. Due to Heisenberg’s uncertainty principle, there should be virtual particle pairs created by quantum fluctuations. Generally speaking, a virtual particle pair will annihilate soon after its birth. But, two virtual particles from a pair can be separated immediately before annihilation due to the exponential expansion of the bubble. Therefore, there would be a large amount of real particles created as vacuum bubble expands exponentially. A rigorous mathematical calculation for the rate of particle creation with the exponential expansion of the bubble will be studied in our future work.