Quantum metrology meets quantum information science - Carlton Caves

Quantum metrology has benefited from its encounter with quantum information, not yet by revolutionary changes in the way high-precision measurements are done, but by a more thorough and rigorous perspective on how quantum mechanics limits high-precision measurements. I will consider several metrology protocols I have worked on---squeezing in interferometry, phase-preserving linear amplification, nondeterministic amplification, quantum limits on force detection, and probabilistic metrology---and indicate how in each case, looking at the question from the perspective of quantum information science leads to a new quantum-information problem that my collaborators and I have solved.