180 citations · 920 across the 17 of their papers we have counts for
4 papers · 2 filters
Entanglement under restricted operations: Analogy to mixed-state entanglement
Stephen D. Bartlett, Andrew C. Doherty, Robert W. Spekkens +1
We show that the classification of bi-partite pure entangled states when local quantum operations are restricted yields a structure that is analogous in many respects to that of mi…
Energy as an Entanglement Witness for Quantum Many-Body Systems
Mark R. Dowling, Andrew C. Doherty, Stephen D. Bartlett
We investigate quantum many-body systems where all low-energy states are entangled. As a tool for quantifying such systems, we introduce the concept of the entanglement gap, which…
Decoherence-full subsystems and the cryptographic power of a private shared reference frame
Stephen D. Bartlett, Terry Rudolph, Robert W. Spekkens
We show that private shared reference frames can be used to perform private quantum and private classical communication over a public quantum channel. Such frames constitute a nove…
Relativistically invariant quantum information
Stephen D. Bartlett, Daniel R. Terno
We show that quantum information can be encoded into entangled states of multiple indistinguishable particles in such a way that any inertial observer can prepare, manipulate, or m…