English

Quantum algorithm for the Laughlin wave function

Quantum Physics 2013-05-29 v1 Mesoscale and Nanoscale Physics High Energy Physics - Theory

Abstract

We construct a quantum algorithm that creates the Laughlin state for an arbitrary number of particles nn in the case of filling fraction one. This quantum circuit is efficient since it only uses n(n1)/2n(n-1)/2 local qudit gates and its depth scales as 2n32n-3. We further prove the optimality of the circuit using permutation theory arguments and we compute exactly how entanglement develops along the action of each gate. Finally, we discuss its experimental feasibility decomposing the qudits and the gates in terms of qubits and two qubit-gates as well as the generalization to arbitrary filling fraction.

Keywords

Cite

@article{arxiv.0902.4797,
  title  = {Quantum algorithm for the Laughlin wave function},
  author = {J. I. Latorre and V. Picó and A. Riera},
  journal= {arXiv preprint arXiv:0902.4797},
  year   = {2013}
}

Comments

4 pages, 5 figures

R2 v1 2026-06-21T12:16:23.830Z