1.3k citations · 2k across the 12 of their papers we have counts for
12 papers
Quantum Discord and Quantum Computing - An Appraisal
Animesh Datta, Anil Shaji
We discuss models of computing that are beyond classical. The primary motivation is to unearth the cause of nonclassical advantages in computation. Completeness results from comput…
Entropic measures of nonclassical correlations
Matthias D. Lang, Carlton M. Caves, Anil Shaji
A framework for categorizing entropic measures of nonclassical correlations in bipartite quantum states is presented. The measures are based on the difference between a quantum ent…
Nonlinear interferometry with Bose-Einstein condensates
Alexandre B. Tacla, Sergio Boixo, Animesh Datta +2
We analyze a proposed experiment [Boixo et al., Phys. Rev. Lett. 101, 040403 (2008)] for achieving sensitivity scaling better than in a nonlinear Ramsey interferometer that u…
Quantum-circuit guide to optical and atomic interferometry
Carlton M. Caves, Anil Shaji
Atomic (qubit) and optical or microwave (modal) phase-estimation protocols are placed on the same footing in terms of quantum-circuit diagrams. Circuit equivalences are used to dem…
Quantum-limited metrology and Bose-Einstein condensates
Sergio Boixo, Animesh Datta, Matthew J. Davis +3
We discuss a quantum-metrology protocol designed to estimate a physical parameter in a Bose-Einstein condensate of N atoms, and we show that the measurement uncertainty can decreas…
Quantum Metrology: Dynamics vs. Entanglement
Sergio Boixo, Animesh Datta, Matthew J. Davis +3
A parameter whose coupling to a quantum probe of constituents includes all two-body interactions between the constituents can be measured with an uncertainty that scales as $1/…