1. IBM Q devices and simulators.
https://www.research.ibm.com/ibm-q/technology/devices/
2. IBM Q experience community.
https://quantumexperience.ng.bluemix.net/qx/community?channel=papers&category=ibm
3. IonQ.
https://ionq.co/resources
4. A preview of Bristlecone, Google’s new quantum processor.
https://ai.googleblog.com/2018/03/a-preview-of-bristlecone-googles-new.html
5. Qiskit Aer.
https://qiskit.org/aer
,
https://medium.com/qiskit/qiskit-aer-d09d0fac7759