In 1981, Richard Feynman suggested that a quantum computer might be able to simulate the evolution of quantum systems much better than classical computers. Except for several proof-of-principle experiments, no working quantum computer has yet been built.
Source: ieee.org
Schrödinger’s famous thought experiment has come to life in a new form because quantum researchers are at the cusp of a long-sought accomplishment: creating a quantum computer that can do something notraditional computer can match. They’ve spent years battling naysayers who insisted that a quantum computer was an unachievable sci-fi fantasy, and nowthese researchers are finally beginning to indulge in some well-deserved self-congratulation.
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Einstein’s objections to quantum mechanics began very early. Schrödinger’s version of the theory introduced a new mathematical entity, the wave function, which seemed to allow the position of an unmeasured particle to be spread out across an arbitrarily large region of space. When the particle’s position was measured, the wave function was said to ‘collapse’, suddenly becoming localised where the particle was detected.
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