Arbitrary Control of Entanglement between Two Superconducting Resonators

TL;DR

This paper introduces a method to generate any desired entangled quantum state between two superconducting resonators using tunable artificial atoms, enabling efficient creation of complex superpositions like NOON states with current technology.

Contribution

It presents a novel state-synthesis algorithm for entangling superconducting resonators via artificial atoms, advancing quantum state control capabilities.

Findings

Efficient synthesis of NOON states demonstrated theoretically.

Method utilizes coherent interactions with tunable artificial atoms.

Applicable with existing superconducting circuit technology.

Abstract

We present a method to synthesize an arbitrary quantum state of two superconducting resonators. This state-synthesis algorithm utilizes a coherent interaction of each resonator with a tunable artificial atom to create entangled quantum superpositions of photon number (Fock) states in the resonators. We theoretically analyze this approach, showing that it can efficiently synthesize NOON states, with large photon numbers, using existing technology.