Unconventional geometric quantum phase gates with two SQUIDs in a cavity

Xia, Lifang; Xie, Qing

doi:10.1016/j.optcom.2007.12.075

Cited by 5 publications

(2 citation statements)

References 45 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The superconducting quantum interference devices (SQUIDs) are the elementary component in the superconducting circuits [84][85][86][87][88][89], and the energy level structure of the SQUID qubits can be easily modulated by changing local bias fields [83]. As shown in Fig.…”

Section: Illustrative Examplementioning

confidence: 99%

Robust population inversion in three-level systems by composite pulses

Zhang,

Liu,

Shi

et al. 2021

Preprint

View full text Add to dashboard Cite

In this paper, we extend the idea of composite pulses to achieve robust population inversion in a three-level quantum system. The scheme is based on the modulation of the coupling strength, and the pulse waveforms are designed according to the Taylor expansion. The composite pulses sequence can compensate systematic errors to any desired order. In particular, this scheme keeps good performance under the disturbance of waveform deformations. Moreover, we employ the composite pulses sequence to realize the generation of the W state in the superconducting circuits. The numerical results show that the fidelity can still maintain a high level in a decoherence environment.

show abstract

Section: Illustrative Examplementioning

confidence: 99%

Robust population inversion in three-level systems by composite pulses

Zhang,

Liu,

Shi

et al. 2021

Preprint

View full text Add to dashboard Cite

show abstract

“…By modulating the external electromagnetic parameters such as gate voltages and bias fluxes, one can obtain the desired level-structures to implement the quantum operations, including quantum logic gates [8][9][10], electromagnetic induced transparency [11,12], and quantum phase transition [13], etc. Recently, the investigations of gauge potentials via Josephson nanocircuits have captured the attention of researchers increasingly [14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%