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Measurement-Only Topological Quantum Computation via Anyonic Interferometry

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arxiv 0808.1933 v2 pith:FCK2SMMI submitted 2008-08-14 quant-ph cond-mat.mes-hallcond-mat.str-el

Measurement-Only Topological Quantum Computation via Anyonic Interferometry

classification quant-ph cond-mat.mes-hallcond-mat.str-el
keywords topologicalquantumcomputationmeasurementmeasurement-onlyanyonicchargeused
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We describe measurement-only topological quantum computation using both projective and interferometrical measurement of topological charge. We demonstrate how anyonic teleportation can be achieved using "forced measurement" protocols for both types of measurement. Using this, it is shown how topological charge measurements can be used to generate the braiding transformations used in topological quantum computation, and hence that the physical transportation of computational anyons is unnecessary. We give a detailed discussion of the anyonics for implementation of topological quantum computation (particularly, using the measurement-only approach) in fractional quantum Hall systems.

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Cited by 2 Pith papers

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    New combinatorial proofs and circuit designs for quantum error correction reduce physical qubit overhead by up to 10x and time overhead by 2-6x for codes including Steane, Golay, and surface codes.

  2. Information Loss in Generalized Symmetry Breaking

    quant-ph 2025-09 conditional novelty 4.0

    Anyon condensation is encoded as a conditional expectation between operator algebras, and the information it erases, measured by relative entropy, is claimed to be bounded by the log of the condensate's quantum dimension.