edited by T Claeson (Chalmers University, Sweden) & P Delsing (Chalmers University, Sweden)

In 2001, the Nobel Foundation celebrated the 100th anniversary of the first Nobel Prize, and all previous Nobel laureates were invited to attend the Nobel ceremonies in Stockholm. This gave an excellent opportunity for arranging jubilee symposia with topics that would attract several of the laureates. The chosen subject of “Condensation and Coherence in Condensed Systems” attracted sixteen Nobel laureates and another thirty-five leading scientists.

The idea was to bring scientists together from several related subdisciplines: atomic physics, quantum optics, and condensed matter physics, for cross-breeding of ideas, concepts, and experience. Subjects like phase transitions in strongly coupled systems, Bose–Einstein condensation in weakly coupled systems, macroscopic quantum phenomena, coherence in mesoscopic structures, and quantum information were intensively discussed from different points of view. Coherence phenomena in condensed systems were emphasized. A special session was devoted to the emerging field of quantum computing, with experimental and theoretical results reported for different types of qu-bits. The 2001 Nobel Prize awarded to Eric Cornell, Wolfgang Ketterle, and Carl Wieman, “for the achievement of Bose–Einstein condensation in dilute gases of alkali atoms, and for early fundamental studies of the properties of the condensates,” gave an extra flavor to the theme of the Centennial Symposium.

• Quantum Coherence Between States with Even and Odd Numbers of Electrons (A F Andreev)
• Electron Spin in Single Wall Carbon Nanotubes (P E Lindelof et al.)
• Superfluidity and Coherence in Bose–Einstein Condensates (W Ketterle)
• Jahn–Teller Bipolarons and Their Condensation (K A Müller)
• Probing Quantum Mechanics Towards the Everyday World: Where Do We Stand? (A J Leggett)
• The Question of Phase in a Bose–Einstein Condensate (S Stenholm)
• Experiments with d-Wave Superconductors (J Mannhart et al.)
• Noise and Decoherence in Quantum Two-Level Systems (A Shnirman et al.)
• Coherent Manipulations of Charge-Number States in a Cooper-Pair Box (Y Nakamura et al.)
• Quiet Readout of Superconducting Flux States (J Clarke et al.)
• and other papers