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.
Permanent link for public information only:
Permanent link for all public and protected information:
(DAMTP, University of Cambridge)
Amphitéâtre Léon Motchane (IHES)
Amphitéâtre Léon Motchane
Le Bois Marie
35, route de Chartres
Ten dimensional supergravities are well-known to arise as low-energy limits of string theory. I will show that in fact, these pure supergravities are complete string theories in their own right. The strings in question describe holomorphic maps to the space of null geodesics in complexified space-time, known as ambitwistor space, and have no massive states in their spectrum. Worldsheet correlators describe scattering amplitudes in pure supergravity, in a form found recently by Cachazo, He & Yuan, in which the integral over the moduli space of marked curves is localized to solutions of the Gross-Mende equations.