Long storage times for qubits will be integral in the construction of a scalable quantum computer. This leads me to ask the current state of affairs in our ability to store qubits. Namely, what is the record storage time for a qubit at any temperature?
Upon searching for the record storage time I found the following result at room temperature: https://www.sciencemag.org/content/342/6160/830
I'd be quite surprised if cooling the system didn't provide an increase in storage time. However, the costs of cooling might outweigh the gain in storage time. Thus, I am interested in how the storage time depends upon temperature.