Microwave photonics with Josephson junction arrays: Negative refraction index and entanglement through disorder

2011/10/31 by David Zueco, J. J. Mazo, Juan José Mazo +4 · 39 citations
Computer Science · Engineering · Physics and Astronomy · #Condensed matter physics #Josephson effect #Microwave #Negative refraction #Neural Networks and Reservoir Computing #Optoelectronics #Photon #Photonic and Optical Devices #Photonic crystal #Photonics #Physics #Pi Josephson junction #Quantum #Quantum Information and Cryptography #Quantum entanglement #Quantum mechanics #Qubit #Refractive index #Scattering #Superconductivity #cond-mat.supr-con #quant-ph

paper · pdf · doi:10.1103/physrevb.86.024503

published in Physical Review B 86(2) (American Physical Society) · minor changes. Version to be published in Phys. Rev. B

arxiv created 2012/06/28 · openalex publication_date 2012/07/05 · arxiv updated 2012/07/13 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We study different architectures for a photonic crystal in the microwave regime based on superconducting transmission lines interrupted by Josephson junctions, both in one and two dimensions. A study of the scattering properties of a single junction in the line shows that the junction behaves as a perfect mirror when the photon frequency matches the Josephson plasma frequency. We generalize our calculations to periodic arrangements of junctions, demonstrating that they can be used for tunable band engineering, forming what we call a quantum circuit crystal. Two applications are discussed in detail. In a two-dimensional structure we demonstrate the phenomenon of negative refraction. We finish by studying the creation of stationary entanglement between two superconducting qubits interacting through a disordered media.

Citations

• Analogue Hawking Radiation in a dc-SQUID Array Transmission Line
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• Coupling superconducting qubits via a cavity bus
• Open Quantum Systems. An Introduction

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