Time reversal and exchange symmetries of unitary gate capacities
IEEE Transactions on Information Theory
Bidirectional coherent classical communication
Quantum Information & Computation
Entangled brachistochrone: minimum time to reach the target entangled state
Quantum Information Processing
Quantum Information & Computation
Hi-index | 754.90 |
We consider interactions as bidirectional channels. We investigate the capacities for interaction Hamiltonians and nonlocal unitary gates to generate entanglement and transmit classical information. We give analytic expressions for the entanglement generating capacity and entanglement-assisted one-way classical communication capacity of interactions, and show that these quantities are additive, so that the asymptotic capacities equal the corresponding 1-shot capacities. We give general bounds on other capacities, discuss some examples, and conclude with some open questions.