Measuring the Edwards-Anderson order parameter of the Bose glass : a quantum gas microscope approach
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With the advent of spatially resolved fluorescence imaging in quantum gas microscopes, it is now possible to directly image glassy phases and probe the local effects of disorder in a highly controllable setup. Here we present numerical calculations using a spatially resolved local mean-field theory, show that it captures the essential physics of the disordered system and use it to simulate the density distributions seen in single-shot fluorescence microscopy. From these simulated images we extract local properties of the phases which are measurable by a quantum gas microscope and show that unambiguous detection of the Bose glass is possible. In particular, we show that experimental determination of the Edwards-Anderson order parameter is possible in a strongly correlated quantum system using existing experiments. We also suggest modifications to the experiments which will allow further properties of the Bose glass to be measured.
Thomson , S J , Walker , L S , Harte , T L & Bruce , G D 2016 , ' Measuring the Edwards-Anderson order parameter of the Bose glass : a quantum gas microscope approach ' Physical Review. A, Atomic, molecular, and optical physics , vol 94 , no. 5 , 051601(R) . DOI: 10.1103/PhysRevA.94.051601
Physical Review. A, Atomic, molecular, and optical physics
© 2016, American Physical Society. This work has been made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at http://journals.aps.org/pra/ https://doi.org/10.1103/PhysRevA.94.051601
We thank D Cassettari, A Daley, S Denny, J Keeling, P Kirton and A Trombettoni for insightful discussions and assistance. Computations were performed on the EPSRC CDT Computer Cluster and the University of St Andrews School of Physics & Astronomy computer cluster. SJT acknowledges studentship funding from EPSRC under grant no. EP/G03673X/1. GDB acknowledges support from the Leverhulme Trust RPG-2013-074.