Use of sack geometry to implement a single qubit phase gate

Details Use of sack geometry to implement a single qubit phase gate Use of sack geometry to implement a single qubit phase gate

2009-08-28

2011-12-13

Sandvik, Benjamin (Department: 2826)

Active solid-state devices (e.g., transistors, solid-state diode

Thin active physical layer which is

C257S030000

Reexamination Certificate

active

08076666

ABSTRACT:
An implementation of a single qubit phase gate for use in a quantum information processing scheme based on the υ=5/2 fractional quantum Hall (FQH) state is disclosed. Using sack geometry, a qubit consisting of two σ-quasiparticles. which may be isolated on respective antidots, may be separated by a constriction from the bulk of a two-dimensional electron gas in the υ=5/2 FQH state. An edge quasiparticle may induce a phase gate on the qubit. The number of quasiparticles that are allowed to traverse the edge path defines which gate is induced. For example, if a certain number of quasiparticles are allowed to traverse the path, then a π/8 gate may be effected.

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