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santecarloni

Coherent Schrödinger's cat still confounds - physicsworld.com - 1 views

physicsworld.com/...47944

schrödinger cat phy

shared by santecarloni on 29 Nov 11 - No Cached
  • santecarloni on 29 Nov 11
     
    The famous paradox of Schrödinger's cat starts from principles of quantum physics and ends with the bizarre conclusion that a cat can be simultaneously in two physical states - one in which the cat is alive and the other in which it is dead. In real life, however, large objects such as cats clearly don't exist in a superposition of two or more states and this paradox is usually resolved in terms of quantum decoherence. But now physicists in Canada and Switzerland argue that even if decoherence could be prevented, the difficulty of making perfect measurements would stop us from confirming the cat's superposition.
pacome delva

Physics - Outsmarting decoherence in a trapped ion quantum computer - 0 views

physics.aps.org/...PhysRevLett.103.200503

phy quantum_computation ion_trap quantum_physics

shared by pacome delva on 03 Dec 09 - Cached
  • This is the first ion trap demonstration of a set of logical gates that are universal for quantum computation
pacome delva

Quantum effect spotted in a visible object - 0 views

physicsworld.com/...42019

phy quantum_physics decoherence Schrodinger_cat

shared by pacome delva on 19 Mar 10 - Cached
  • In this way the researchers created a superposition state of the resonator where they simultaneously had an excitation in the resonator and no excitation in the resonator, such that when they measured it, the resonator has to "choose" which state it is in. "This is analogous to Schrödinger's cat being dead and alive at the same time," says Cleland.
  • pacome delva on 19 Mar 10
     
    The Schrodinger cat with drums, that's for Nik ;)
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