Yearly Archives: 2011

Hardy’s paradox and Bell inequalities in time

Extending on our previous work on Leggett-Garg inequalities, we recently demonstrated the venerable Hardy paradox and the violation of a state-independent Bell inequality in a temporal scenario. Our work has now appeared in PRL. Tests of quantum mechanics, such as the Bell inequality, are usually carried out in a spatial scenario, where measurements performed on […]

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Efficient quantum process tomography via compressive sensing

We have a new paper, titled “Efficient measurement of quantum dynamics via compressive sensing” in PRL. I already spent a significant amount of time with my co-authors on writing the paper and the press release so I’m not gonna invent the wheel a third time and just post some excerpts from the UQ press release […]

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Phone-a-referee

The referee reports are in and you’re faced with a familiar situation: they are positive, hooray, but there is an ambiguous suggestion which you don’t quite understand. What follows is a lot of second-guessing, a number of meetings with your co-authors, lengthy editing of the paper to implement whatever you think the referees wanted you […]

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New open-access journals

For those who haven’t seen it yet, there are two new journals, the American Institue of Physics’ (AIP) AIP Advances and American Physical Society’s (APS) Physical Review X (PRX). Both are representative of a recent trend for traditional publishers to move to open access, online-only publishing models. Another example would be Nature Communications, a journal […]

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Spectral bi-photon wave-packet shaping

We have a new paper in Optics Express, “Engineered optical nonlinearity for quantum light sources“. We demonstrate a simple technique of longitudinal shaping of bi-photon wavepackets created via spontaneous parametric downconversion (SPDC). In a standard SPDC experiment, wavepackets have a sinc frequency spectrum. This is due to the fact that a crystal has finite length […]

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UQ back from flood break

After one week of closure due to floodings, UQ is now almost back to full speed. The lower lying areas were pretty hard hit but the essential buildings and services survived unscathed. Here’s a Courier Mail video from UQ and surrounding suburbs. UQ footage starts at 3:31 but the whole video is interesting, really.

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