Irreversibility and the Arrow of Time in a Quenched
... FIG. 2 (color online). We show a section of the magnetometer employed in our NMR experiment. A superconducting magnet, which produces a high intensity magnetic field (B0 ) in the longitudinal direction, is immersed in liquid He, surrounded by liquid N in another vacuum separated chamber, in a therma ...
... FIG. 2 (color online). We show a section of the magnetometer employed in our NMR experiment. A superconducting magnet, which produces a high intensity magnetic field (B0 ) in the longitudinal direction, is immersed in liquid He, surrounded by liquid N in another vacuum separated chamber, in a therma ...
Chain rules for quantum Rényi entropies
... The Shannon entropy is one of the central concepts in information theory: it quantifies the amount of uncertainty contained in a random variable, and is used to characterize a wide range of information theoretical tasks. However, it is primarily useful for making asymptotic statements about problems ...
... The Shannon entropy is one of the central concepts in information theory: it quantifies the amount of uncertainty contained in a random variable, and is used to characterize a wide range of information theoretical tasks. However, it is primarily useful for making asymptotic statements about problems ...
Here
... If | has n possible states |1, |2, , |n, it can be described at any instant in time by some unique linear combination as | = a1 |1 + a2 |2 + + an |n where a1, a2, , an, are complex constants, which may change with time. After a ‘measurement’, | will collapse to | = |i with ...
... If | has n possible states |1, |2, , |n, it can be described at any instant in time by some unique linear combination as | = a1 |1 + a2 |2 + + an |n where a1, a2, , an, are complex constants, which may change with time. After a ‘measurement’, | will collapse to | = |i with ...
