137 citations · 374 across the 9 of their papers we have counts for
9 papers
Quantum microscopy based on Hong-Ou-Mandel interference
Bienvenu Ndagano, Hugo Defienne, Dominic Branford +5
Hong-Ou-Mandel (HOM) interference, the bunching of indistinguishable photons at a beam splitter, is a staple of quantum optics and lies at the heart of many quantum sensing approac…
Average number is an insufficient metric for interferometry
Dominic Branford, Jesús Rubio
We argue that analysing schemes for metrology solely in terms of the average particle number can obscure the number of particles effectively used in informative events. For a numbe…
Noise limits on two-photon interferometric sensing
Hannah Scott, Dominic Branford, Niclas Westerberg +2
When a photon interferes with itself while traversing a Mach-Zehnder inteferometer, the output port where it emerges is influenced by the phase difference between the interferomete…
Beyond coincidence: using all the data in Hong-Ou-Mandel interferometry
Hannah Scott, Dominic Branford, Niclas Westerberg +2
The Hong-Ou-Mandel effect provides a mechanism to determine the distinguishability of a photon pair by measuring the bunching rates of two photons interfering at a beam splitter. O…
Quantum limits of localisation microscopy
Evangelia Bisketzi, Dominic Branford, Animesh Datta
We show that localisation microscopy of multiple weak, incoherent point sources with possibly different intensities in one spatial dimension is equivalent to estimating the amplitu…
Quantum enhanced estimation of diffusion
Dominic Branford, Christos N. Gagatsos, Jai Grover +2
Momentum diffusion is a possible mechanism for driving macroscopic quantum systems towards classical behaviour. Experimental tests of this hypothesis rely on a precise estimation o…
On defining the Hamiltonian beyond quantum theory
Dominic Branford, Oscar C. O. Dahlsten, Andrew J. P. Garner
Energy is a crucial concept within classical and quantum physics. An essential tool to quantify energy is the Hamiltonian. Here, we consider how to define a Hamiltonian in general…
Fundamental quantum limits of multi-carrier optomechanical sensors
Dominic Branford, Haixing Miao, Animesh Datta
Optomechanical sensors involving multiple optical carriers can experience mechanically mediated interactions causing multi-mode correlations across the optical fields. One instance…
Gaussian systems for quantum enhanced multiple phase estimation
Christos N. Gagatsos, Dominic Branford, Animesh Datta
For a fixed average energy, the simultaneous estimation of multiple phases can provide a better total precision than estimating them individually. We show this for a multimode inte…