Bilayer Quantum Hall System As a Macroscopic Qubit
نویسنده
چکیده
Because of variety of gaps in excitation energies, a Quantum Hall system can be treated as a quantum mechanics with finite number of degrees of freedom at the low temperature limit. Especially, a bilayer Quantum Hall system on a sphere has two ground states and they rotate under a spin 1 2 representation of SU(2) with suffering an external electric field. We suggest this system can be regarded as a macroscopic realization of a qubit for a quantum computer.
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