4 papers
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…