180 citations · 589 across the 9 of their papers we have counts for
11 papers · 1 filter
Random subspaces for encryption based on a private shared Cartesian frame
Stephen D. Bartlett, Patrick Hayden, Robert W. Spekkens
A private shared Cartesian frame is a novel form of private shared correlation that allows for both private classical and quantum communication. Cryptography using a private shared…
Logical Pre- and Post-Selection paradoxes, measurement-disturbance and contextuality
M. S. Leifer, R. W. Spekkens
Many seemingly paradoxical effects are known in the predictions for outcomes of measurements made on pre- and post-selected quantum systems. A class of such effects, which we call…
Pre- and Post-selection paradoxes and contextuality in quantum mechanics
M. S. Leifer, R. W. Spekkens
Many seemingly paradoxical effects are known in the predictions for outcomes of intermediate measurements made on pre- and post-selected quantum systems. Despite appearances, these…
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…
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…
Quantum state targeting
Terry Rudolph, Robert W. Spekkens
We introduce a new primitive for quantum communication that we term "state targeting" wherein the goal is to pass a test for a target state even though the system upon which the te…