Topological order at finite temperature?
... the only local operator which has non-vanishing correlation functions is the identity ⇒ any local perturbations, such as the environment, cannot have non-trivial matrix elements between different ground states ...
... the only local operator which has non-vanishing correlation functions is the identity ⇒ any local perturbations, such as the environment, cannot have non-trivial matrix elements between different ground states ...
Derivation of the Equation E=mc2-v3.odt
... uncertainty in the speed of the particle is given by the ratio between the uncertainties in position and time. Then we shall assume that when the maximum uncertainty in the velocity of the particle is the speed of light, the maximum uncertainty in the energy of the particle will be the energy of the ...
... uncertainty in the speed of the particle is given by the ratio between the uncertainties in position and time. Then we shall assume that when the maximum uncertainty in the velocity of the particle is the speed of light, the maximum uncertainty in the energy of the particle will be the energy of the ...
Quantum Information Chapter 10. Quantum Shannon Theory
... same probability distribution X, we say that the letters are independent and identically distributed, abbreviated i.i.d. We’ll use X n to denote the ensemble of n-letter messages in which each letter is generated independently by sampling from X, and ~x = (x1 x2 . . . xn ) to denote a string of bits ...
... same probability distribution X, we say that the letters are independent and identically distributed, abbreviated i.i.d. We’ll use X n to denote the ensemble of n-letter messages in which each letter is generated independently by sampling from X, and ~x = (x1 x2 . . . xn ) to denote a string of bits ...
quantum dynamics of integrable spin chains
... The extension to local observables was done in the study of impurity models. Both Tjon [27], and Abraham, Barouch, Gallavotti and Martin-Löf [1, 2, 3] have found the same kind of behavior for the XX model with an impurity. So, definitely, this unusual behavior of such systems could be discouraging, ...
... The extension to local observables was done in the study of impurity models. Both Tjon [27], and Abraham, Barouch, Gallavotti and Martin-Löf [1, 2, 3] have found the same kind of behavior for the XX model with an impurity. So, definitely, this unusual behavior of such systems could be discouraging, ...
