Build-up of coherence between initially-independent subsystems: The case of Bose-Einstein condensates

作者：Alon Ofir E^*; Streltsov Alexej I; Cederbaum Lorenz S

来源：Physics Letters A, 2009, 373(3): 301-304.

DOI：10.1016/j.physleta.2008.11.037

• Time-evolution
• Fragmented condensates
• Coherence
• Reduced density matrices
• Multi-configurational time-dependent
• Hartree for bosons (MCTDHB)

When initially-independent subsystems are made to contact, coherence can develop due to interaction between them. We exemplify and demonstrate this paradigm through several scenarios of two initially-independent Bose-Einstein condensates which are allowed to collide. The build-up of coherence depends strongly on time, interaction strength and other parameters of each condensate. Implications are discussed.

• 出版日期2009-1-12