# Item

ITEM ACTIONSEXPORT

Released

Journal Article

#### Generation of photonic tensor network states with Circuit QED

##### MPS-Authors

##### External Resource

No external resources are shared

##### Fulltext (restricted access)

There are currently no full texts shared for your IP range.

##### Fulltext (public)

2109.06781v1.pdf

(Preprint), 3MB

6253.pdf

(Publisher version), 2MB

##### Supplementary Material (public)

There is no public supplementary material available

##### Citation

Wei, Z., Cirac, J. I., & Malz, D. (2022). Generation of photonic tensor network
states with Circuit QED.* Physical Review A,* *105*(2):
022611. doi:10.1103/PhysRevA.105.022611.

Cite as: https://hdl.handle.net/21.11116/0000-0009-777B-8

##### Abstract

We propose a circuit QED platform and protocol to deterministically generate microwave photonic tensor network states. We first show that using a microwave cavity as ancilla and a transmon qubit as emitter is a favorable platform to produce photonic matrix-product states. The ancilla cavity combines a large controllable Hilbert space with a long coherence time, which we predict translates into a high number of entangled photons and states with a high bond dimension. Going beyond this paradigm, we then consider a natural generalization of this platform, in which several cavity--qubit pairs are coupled to form a chain. The photonic states thus produced feature a two-dimensional entanglement structure and are readily interpreted as $\textit{radial plaquette}$ projected entangled pair states, which include many paradigmatic states, such as the broad class of isometric tensor network states, graph states, string-net states.