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Trapped Ion Quantum Computing Superconducting Qubits Quantum Simulation

Implementation of pairwise longitudinal coupling in a three-qubit superconducting circuit

arXiv
Authors: Tanay Roy, Suman Kundu, Madhavi Chand, Sumeru Hazra, N. Nehra, R. Cosmic, A. Ranadive, Meghan P. Patankar, Kedar Damle, R. Vijay

Year

2016

Paper ID

42752

Status

Preprint

Abstract Read

~2 min

Abstract Words

86

Citations

N/A

Abstract

We present the "trimon", a multi-mode superconducting circuit implementing three qubits with all-to-all longitudinal coupling. This always-on interaction enables simple implementation of generalized controlled-NOT gates which form a universal set. Further, two of the three qubits are protected against Purcell decay while retaining measurability. We demonstrate high-fidelity state swapping operations between two qubits and characterize the coupling of all three qubits to a neighbouring transmon qubit. Our results offer a new paradigm for multi-qubit architecture with applications in quantum error correction, quantum simulations and quantum annealing.

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  • This paper contributes to the Quantum Simulation research area in the Quantum Articles archive.
  • It adds a 2016 reference point for readers tracking recent quantum research.
  • We present the "trimon", a multi-mode superconducting circuit implementing three qubits with all-to-all longitudinal coupling.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1610.07915 [2] arXiv https://arxiv.org/abs/1610.07915 [3] Publisher https://arxiv.org/abs/1610.07915

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