Storing data in a province of quantum entanglement could hold enormous promise for securing our online information , but correctly now we can only keep these states for a short time before the entanglement fails . An Australian research team has found a way to salt away data point for hours , not millisecond : Say hello to the earthly concern ’s first solid state quantum hard driveway .
established quantum networks typically trust on fiber optic cablegram and optical maser to store embroiled information . These networks can be up to 100 km in diameter but the optical maser - based system of rules ’s quantum land normally last just a few milliseconds before they collapse . This unexampled hard drive from physicists at ANU and the University of Otago can hold tangled information for up to six hour .
The team basically created the ROM to the laser - establish method ’s Aries by plant an atom of Eu ( it ’s a rare earth element ) into a crystal matrix . Quantum information can be “ written ” into the atom ’s spin state using lasers and stored there for hours by then subjecting the crystallization a pair of magnetic fields — one fixed , one oscillating — which operate the mote ’s twisting in place . “ The two fields isolate the europium spins and prevent the quantum info leak aside , ” Dr Jevon Longdell of the University of Otago said in a jam statement .
“ We can now imagine lay in embroiled Inner Light in freestanding quartz and then carry them to dissimilar share of the electronic web thousands of km aside . ” said trail author Manjin Zhong . “ We believe it will soon be possible to distribute quantum information between any two points on the globe . ”
Should quantum data systems really take off , it could one solar day contribute to a global data point encoding internet . Since the spin states of two mat corpuscle will always pair regardless of how far apart they are , this quantum burden would prevent third parties from tampering with the datum as any changes to one twirl state would be instantly reflected in its partner . [ ANU ]
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