The Starfleet Museum Quantum Archives was a secure storage facility located in the Starfleet Archive Museum. It offered private storage spaces for Starfleet officers, with the objects preserved in stasis with additional climate controls for preservation.
Access to the archive was facilitated by Index, a holographic assistant.
Retired admiral Jean-Luc Picard had a storage space at the quantum archive; among the artifacts from his career stored there included his copy of The Globe Illustrated Shakespeare: The Complete Works, the Kurlan naiskos gifted to him by Professor Galen, and a banner for Captain Picard Day. In 2399, he visited the archive to examine a painting, Daughter, gifted to him by Data. (PIC: "Remembrance")
Early concept art for Picard's quantum archive included a seated research station, and additional artifacts from Picard's past, such as a Horga'hn and a holocube of Lieutenant Natasha Yar.[1]