4 papers
Codes for Quantum Secret Sharing with a Helper
Eric Chitambar, Sarah Hagen, David W. Kribs +3
Helper quantum secret sharing is a form of secret sharing defined by its unique access structure. One special fixed party, called the helper, can work together with any other party…
Quantum Secret Sharing with a Helper and Programmable Access Structures
Eric Chitambar, Sarah Hagen, David W. Kribs +2
Quantum secret sharing (QSS) is a process in which the state of a quantum system is partitioned into multiple shares, allowing only specific subsets of shareholders to reconstruct…
Structure Theorem for Quantum Replacer Codes
Eric Chitambar, Sarah Hagen, David W. Kribs +2
Quantum replacer codes are codes that can be protected from errors induced by a given set of quantum replacer channels, an important class of quantum channels that includes the era…
Detecting Initial System-Environment Correlations in Open Systems
Sarah Hagen, Mark Byrd
Correlations between a system and its environment lead to errors in an open quantum system. Detecting those correlations would be valuable for avoiding and/or correcting those erro…