Stoplight mune vacuum

Maererano nenyanzvi yefizikisi James Franson weYunivhesiti yeMaryland, akadzidza supernova SN 1987A, kumhanya kwechiedza kunodzikira mune vacuum. Zvinyorwa zvake zvakaburitswa mumagazini yesainzi yakakurumbira "Journal of Physics", saka vakavimbika. Kana ivo vakasimbiswa, zvaizoreva kuchinja kukuru mune sayenzi, kubata kukurumidza kwechiedza muvhavha (299792,458 km / h) seimwe yezvikamu zvikuru.

Franson akaona kuti pane musiyano mukumhanya uko neutrinos nemafotoni anobva kune supernova zvinosvika kwatiri. Neutrinos inosvika maawa akati wandei pamberi pemafotoni. Maererano nefizikisi, izvi zvinogona kunge zvakakonzerwa nekuti muvacuum, mafotoni anogona kuiswa mumagetsi uye positrons, izvo zvinozobatanidza zvakare kuita mafotoni. Sezvo zvimedu zvinoparadzana, kudyidzana kwegiravhiti kunogona kusimuka pakati pawo, zvichikonzera kudzikira.

Izvi zvinotevera kuti chiedza chinodzikira kure kwachinofanira kufamba, sezvo mukana wekutevedzana kwezvikamu unowedzera. Pamadaro akayerwa mumamiriyoni emakore echiedza, kunonoka kwephoton kwechiedza kunogona kuva mavhiki.