Compressed quantum simulation of the Ising model

Details Compressed quantum simulation of the Ising model Compressed quantum simulation of the Ising model

2011-09-12

arxiv.org/abs/1109.2455v1

Phys. Rev. Lett. 107, 250503 (2011)

Physics

Quantum Physics

6 pages

Scientific paper

In [R. Jozsa, B. Kraus, A. Miyake, J. Watrous, Proc. R. Soc. A {\bf 466}, 809-830 (2010)] it has been shown that a match gate circuit running on n qubits can be compressed to a universal quantum computation on \log(n)+3 qubits. Here, we show how this compression can be employed to simulate the Ising interaction of a 1D--chain consisting out of n qubits using a universal quantum computer running on log(n) qubits. We demonstrate how the adiabatic evolution can be realized on this exponentially smaller system and how the magnetization, which shows a quantum phase transition, can be measured.

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