Deterministic two-photon C-Z gate with the two-photon quantum Rabi model

Autor:	Tang, Jia-Cheng, Zhao, Jin, Yang, Haitao, Tian, Junlong, Tang, Pinghua, Wang, Shuai-Peng, Lamata, Lucas, Peng, Jie
Rok vydání:	2024
Předmět:	Quantum Physics
Druh dokumentu:	Working Paper
Popis:	We propose a scheme for realizing a deterministic two-photon C-Z gate based on variants of the two-photon quantum Rabi model, which is feasible within the framework of circuit QED. We begin by utilizing the two-photon interaction to implement the nonlinear sign (NS) gate, and subsequently, we construct the C-Z gate following the KLM scheme. We consider three different regimes: the strong coupling regime, the perturbative ultrastrong coupling regime, and the large detuning regime. Our results indicate that the C-Z gate operates fast with high fidelity and is robust against decoherence, thereby offering a suitable approach for achieving deterministic two-photon quantum gates via light-matter interactions. Comment: 8 pages, 8 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2411.03762 Zobrazit plný text záznamu View this record from Arxiv