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- IBM Research - Thomas J. Watson Research CenterUS632 papers
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6 papers · 2 filters
On the LOCC Classification of Bipartite Density Matrices
Patrick Hayden, Barbara M. Terhal, Armin Uhlmann
We provide a unifying framework for exact, probabilistic, and approximate conversions by local operations and classical communication (LOCC) between bipartite states. This framewor…
Hiding bits in Bell states
Barbara M. Terhal, David P. DiVincenzo, Debbie W. Leung
We present a scheme for hiding bits in Bell states that is secure even when the sharers Alice and Bob are allowed to carry out local quantum operations and classical communication.…
Remote State Preparation
Charles H. Bennett, David P. DiVincenzo, Peter W. Shor +3
Quantum teleportation uses prior entanglement and forward classical communication to transmit one instance of an unknown quantum state. Remote state preparation (RSP) has the same…
Universal Quantum Computation with the Exchange Interaction
D. P. DiVincenzo, D. Bacon, J. Kempe +2
Experimental implementations of quantum computer architectures are now being investigated in many different physical settings. The full set of requirements that must be met to make…
Improved two-party and multi-party purification protocols
Elitza N. Maneva, John A. Smolin
We present an improved protocol for entanglement purification of bipartite mixed states using several states at a time rather than two at a time as in the traditional recurrence me…
The Physical Implementation of Quantum Computation
David P. DiVincenzo, IBM
After a brief introduction to the principles and promise of quantum information processing, the requirements for the physical implementation of quantum computation are discussed. T…