Compressed quantum computation using the IBM Quantum Experience

  title={Compressed quantum computation using the IBM Quantum Experience},
  author={Martin Hebenstreit and Daniel Alsina and Jos{\'e} Ignacio Latorre and Barbara Kraus},
The notion of compressed quantum computation is employed to simulate the Ising interaction of a 1D–chain consisting out of n qubits using the universal IBM cloud quantum computer running on log(n) qubits. The external field parameter that controls the quantum phase transition of this model translates into particular settings of the quantum gates that generate the circuit. We measure the magnetization, which displays the quantum phase transition, on a two–qubit system, which simulates a four… 

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  • Rev. Lett. 112, 220501
  • 2014

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  • 2019
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  • Rev. A 94, 012314
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  • Rev. A 94, 032329
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  • Rev. A 79, 032316
  • 2008

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  • 39-44
  • 2002


  • Rev. A 63, 062309
  • 2001


  • Rev. A 88, 052329
  • 2013


  • Rev. A 94, 062326
  • 2016