Entanglement Engineering by Transmon Qubit in a Circuit QED
- URL: http://arxiv.org/abs/2109.00316v1
- Date: Wed, 1 Sep 2021 11:49:07 GMT
- Title: Entanglement Engineering by Transmon Qubit in a Circuit QED
- Authors: Ahmad Salmanogli
- Abstract summary: A transmon qubit is created with two superconducting islands coupled with two Josephson Junction embedded into a transmission line.
The key factor here is the coupling factor between transmission line and qubit by which the quantum features of the system such as transmon decay rate, energy dispersion, and related coherence time are controlled.
- Score: 0.0
- License: http://creativecommons.org/licenses/by-sa/4.0/
- Abstract: this study significantly emphasizes on the entanglement engineering using a
transmon qubit. A transmon qubit is created with two superconducting islands
coupled with two Josephson Junction embedded into a transmission line. The
transmon qubit energies are manipulated through its coupling to the
transmission line. The key factor here is the coupling factor between
transmission line and qubit by which the quantum features of the system such as
transmon decay rate, energy dispersion, and related coherence time are
controlled. To complete knowledge about the design, the system is quantum
mechanically analyzed and the related Hamiltonian is derived. Accordingly, the
dynamics equation of motions is derived and so the energy dispersion and the
coupled system coherence time are investigated. The system engineering should
be established in such a way that satisfies the energy dispersion and the
coherence time. However, to analyze the entanglement between modes, it needs to
calculate the number of photons of the transmission lines and the transmon
qubit, and also the phase sensitive cross-correlation. The important section of
this study emphasizes on engineering the coupling between the transmon qubit
and transmission line to enhance the entanglement. The results show that around
the Josephson Junction location where the more coupling is established the more
entanglement between modes is created.
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