Open Quantum Dynamics of Mesoscopic Bose-Einstein ... - Physics

4. Continuously monitored Bose condensates: quasiprobability distributionsFigure 4.11: Contour plots of the atomic Q function in polar coordinates, with the initial state∣ j, −j , for a medium strength measurement (Γ =0.16) and very strong interatomic interactions〉z(Θ =2.0). The times of successive plots are separated approximately by half the tunnelling period:t n ≃ πn/Ω, and are printed in units of t 0 =1/Ω.1t=0.251t=3.51t=6.751t=10θ/π0.50.50.50.50−1t=13.250 110−1t=16.50 110−1t=19.750 110−1 t=23 0 11θ/π0.50.50.50.50−1t=26.250 110−1t=29.50 110−1t=32.750 110−1 t=36 0 11θ/π0.50.50.50.50−1t=39.250 110−1t=42.50 110−1t=45.750 110−1 t=49 0 11θ/π0.50.50.50.50−1 0 1φ/π0−1 0 1φ/π0−1 0 1φ/π0−1 0 1φ/π96