In order to enable an iCal export link, your account needs to have an API key created. This key enables other applications to access data from within Indico even when you are neither using nor logged into the Indico system yourself with the link provided. Once created, you can manage your key at any time by going to 'My Profile' and looking under the tab entitled 'HTTP API'. Further information about HTTP API keys can be found in the Indico documentation.
Additionally to having an API key associated with your account, exporting private event information requires the usage of a persistent signature. This enables API URLs which do not expire after a few minutes so while the setting is active, anyone in possession of the link provided can access the information. Due to this, it is extremely important that you keep these links private and for your use only. If you think someone else may have acquired access to a link using this key in the future, you must immediately create a new key pair on the 'My Profile' page under the 'HTTP API' and update the iCalendar links afterwards.
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Antiferromagnetic noise correlations in optical lattices
Georg M. Bruun
We analyze how noise correlations probed by time-of-flight (TOF)
experiments reveal antiferromagnetic (AF) correlations of fermionic atoms
in two-dimensional (2D) and three-dimensional (3D) optical lattices.
Combining analytical and quantum Monte Carlo (QMC) calculations using
experimentally realistic parameters, we show that AF correlations can be
detected for temperatures above and below the critical temperature for AF
ordering. It is demonstrated that spin-resolved noise correlations yield
important information about the spin ordering. Finally, we show how to
extract the spin correlation length and the related critical exponent of
the AF transition from the noise.