195 citations · 545 across the 10 of their papers we have counts for
10 papers
Cascading amplifiers can create exponentially large coherence
Lucas A. Ostrowski, Giacomo Pantaleoni, Howard M. Wiseman +1
A standard laser beam has photon degeneracy, or coherence, , of at most , where is the number of photons in the laser itself. Even quantum-engineered lasers…
Analytical results for laser models producing a beam with sub-Poissonian photon statistics and coherence scaling as the Heisenberg limit
Lucas A. Ostrowski, Travis J. Baker, Dominic W. Berry +1
Recent advances in laser theory have demonstrated that a quantum enhancement is possible for the production of coherence by a continuous-wave laser device. Curiously…
Universality of the Heisenberg limit for estimates of random phase shifts
Michael J. W. Hall, Dominic W. Berry, Marcin Zwierz +1
The Heisenberg limit traditionally provides a lower bound on the phase uncertainty scaling as 1/<N>, where <N> is the mean number of photons in the probe. However, this limit has a…
Linear-optical processing cannot increase photon efficiency
D. W. Berry, A. I. Lvovsky
We answer the question whether linear-optical processing of the states produced by one or multiple imperfect single-photon sources can improve the single-photon fidelity. This proc…
How to perform the most accurate possible phase measurements
D. W. Berry, B. L. Higgins, S. D. Bartlett +3
We present the theory of how to achieve phase measurements with the minimum possible variance in ways that are readily implementable with current experimental techniques. Measureme…
Demonstrating Heisenberg-limited unambiguous phase estimation without adaptive measurements
B. L. Higgins, D. W. Berry, S. D. Bartlett +3
We derive, and experimentally demonstrate, an interferometric scheme for unambiguous phase estimation with precision scaling at the Heisenberg limit that does not require adaptive…