scientist study a special state of matter have chance on that it act likewise to the accelerated expansion of the other universe , which could allow astronomers to test new models in science laboratory configurations .
The discipline , published inPhysical Review X , looked at a Bose - Einstein condensation ( BEC ) , a state of matter where a dilute gas of particles is cooled to almost absolute zero . The team was appear at the elaboration of such a state by lucubrate a swarm of atoms in a doughnut shape . This expansion was so fast that it leave all the flatulence vibrating , in what the scientists call humming .
So how does this hum connect to the uranology ? The universe of discourse is believe to have experienced a similar menstruum of rapid expansion in the first instants after the Big Bang . This time , eff as cosmic pretentiousness , is still poorly understood but , using a BEC it might be possible to enlighten some doubts .
" From the atomic physics linear perspective , the experiment is beautifully key by existing hypothesis , but even more dramatic is how that theory connects with cosmology , " said wind author Stephen Eckel , from the National Institute of Standards and Technology , in astatement .
" Maybe this will one day inform next models of cosmology . Or vice versa . Maybe there will be a poser of cosmology that ’s hard to solve but that you could copy using a frigid atomic gas . "
BECs are systems where quantum phenomena become ostensible and since the particles in a BEC have very little free vigour ( as they are so insensate ) it is potential to employ them for simulating some complex and sometimes extreme physical scenarios . BECs have been successfully used to simulate black holes .
The squad design two experiments . In the first , they looked at how waves propagate in an enlarge medium . They put a legal wave in the original BEC and studied how it changed as the condensate expanded . The sound moving ridge ended up stretched and dispersing , and the dampening effect look like the cosmological parameter know as Hubble rubbing , which plays a role in cosmic inflation . The squad also permit the gas enlarge without any reasoned wave , and they still watch vibrations in the gas mimicking what ’s institute in cosmological theory .
While intriguing , this is not a verbatim comparison between the whole universe and the BEC . An significant point of disagreement is the free energy transfer . In cosmic pompousness , some of the remnant free energy terminate up transform into matter and light , but nothing similar was seen in the BEC . Quantum effects become prevailing there creating maelstrom , making the ring rotate , and change the belongings of the atoms .
The team hopes to better understand these push transfers and continue looking for cosmological analogies in BECs .
