  Quantum networks of quantum objects promise to be exponentially more powerful
than the objects considered independently. To live up to this promise will
require the development of error mitigation and correction strategies to
preserve quantum information as it is initialized, stored, transported,
utilized, and measured. The quantum information could be encoded in discrete
variables such as qubits, in continuous variables, or anything in-between.
Quantum computational networks promise to enable simulation of physical
phenomena of interest to the HEP community. Quantum sensor networks promise new
measurement capability to test for new physics and improve upon existing
measurements of fundamental constants. Such networks could exist at multiple
scales from the nano-scale to a global-scale quantum network.
