TY - JOUR
T1 - Creating macroscopic quantum superpositions with Bose-Einstein condensates
AU - Gordon, D.
AU - Savage, C. M.
PY - 1999
Y1 - 1999
N2 - We use a simple two-mode model to investigate the quantum state dynamics of a two-species Bose-Einsten condensate, such as that produced in recent experiments, undergoing weak Josephson coupling. We find that in certain parameter regimes the quantum state of the system evolves into a macroscopic superposition of two states which differ in the atom number difference between the two species. The “size” of the macroscopic superposition created by such a method can be varied by adjusting the Josephson coupling coefficient, and is found to be near maximal for a certain critical value of this coefficient.
AB - We use a simple two-mode model to investigate the quantum state dynamics of a two-species Bose-Einsten condensate, such as that produced in recent experiments, undergoing weak Josephson coupling. We find that in certain parameter regimes the quantum state of the system evolves into a macroscopic superposition of two states which differ in the atom number difference between the two species. The “size” of the macroscopic superposition created by such a method can be varied by adjusting the Josephson coupling coefficient, and is found to be near maximal for a certain critical value of this coefficient.
UR - http://www.scopus.com/inward/record.url?scp=0001398172&partnerID=8YFLogxK
U2 - 10.1103/PhysRevA.59.4623
DO - 10.1103/PhysRevA.59.4623
M3 - Article
SN - 1050-2947
VL - 59
SP - 4623
EP - 4629
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
IS - 6
ER -