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- W2896513334 abstract "Vertex amplitudes are elementary contributions to the transition amplitudes in the spin foam models of quantum gravity. The purpose of this article is make the first step towards computing vertex amplitudes with the use of quantum algorithms. In our studies we are focused on a vertex amplitude of 3+1 D gravity, associated with a pentagram spin-network. Furthermore, all spin labels of the spin network are assumed to be equal $j=1/2$, which is crucial for the introduction of the emph{intertwiner qubits}. A procedure of determining modulus squares of vertex amplitudes on universal quantum computers is proposed. Utility of the approach is tested with the use of: IBM's emph{ibmqx4} 5-qubit quantum computer, simulator of quantum computer provided by the same company and QX quantum computer simulator. Finally, values of the vertex probability are determined employing both the QX and the IBM simulators with 20-qubit quantum register and compared with analytical predictions." @default.
- W2896513334 created "2018-10-26" @default.
- W2896513334 creator A5075529194 @default.
- W2896513334 date "2018-10-16" @default.
- W2896513334 modified "2023-10-14" @default.
- W2896513334 title "Spin Foam Vertex Amplitudes on Quantum Computer -- Preliminary Results" @default.
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