The 4th workshop in this series was entitled "Dynamics of Complex Quantum Systems" and was held at Cumberland Lodge, August 5-8, 2013. Below is the workshop programme, the abstracts for the talks/posters and the full list of participants. Windsor2013 organisers: Tania Monteiro (UCL), Dieter Jaksch (Oxford), Stephen Clark (Oxford) and Sarah Al-Assam (Oxford) The following invited speakers were at the workshop: Martin Plenio *Plenary speaker* Charles Adams Sougato Bose Gabriele De Chiara Jens Eisert Chris Foot Ed Hinds Igor Lesanovsky Renbao Liu Sabrina Maniscalco John Morton Janne Ruostekoski Ulrich Schollwöck Marzena Szymanska Wayne Witzel The workshop will also have short talks from the following speakers: Guangjong Dong Tom Billam Magnus Borgh Gareth Conduit Stefan Baur Gunnar Moller Martin Kiffner Mark Lee Christoph Weiss Luis Correa Abolfazl Bayat Leonardo Banchi Eran Ginossar Other participants and poster presenters are: Giovanni Cotugno John Helm Kirsty Dunnett David Holdaway Seto Balian Robert Bettles Jonathan Coulthard Mark Mitchison Gabriel Mazzucchi Wojciech Kozlowski |