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One-atom maser: Non-separable atom pairs
Berthold-Georg Englert, Pavel Lougovski, Enrique Solano +1
When a one-atom maser is operated in the standard way -- excited, resonant two-level atoms traverse the resonator at random times -- the emerging atoms are entangled with the cavit…
Ascertaining the Values of , , and of a Polarization Qubit
Oliver Schulz, Ruprecht Steinhübl, Markus Weber +3
In the 1987 spin retrodiction puzzle of Vaidman, Aharonov, and Albert one is challenged to ascertain the values of , , and of a spin-1/2 particle by utilizing entan…
Interacting Bosons at Finite Temperature: How Bogolubov Visited a Black Hole and Came Home Again
S. A. Fulling, B. -G. Englert, M. D. Pilloff
The structure of the thermal equilibrium state of a weakly interacting Bose gas is of current interest. We calculate the density matrix of that state in two ways. The most effectiv…
Five Lectures On Dissipative Master Equations
Berthold-Georg Englert, Giovanna Morigi
1 First Lecture: Basics 1.1 Physical Derivation of the Master Equation 1.2 Some Simple Implications 1.3 Steady State 1.4 Action to the Left 2 Second Lecture: Eigenvalues and Eigenv…
Statistics of dressed modes in a thermal state
Berthold-Georg Englert, Stephen A. Fulling, Mark D. Pilloff
By a Wigner-function calculation, we evaluate the trace of a certain Gaussian operator arising in the theory of a boson system subject to both finite temperature and (weak) interac…
Elements of Micromaser Physics
Berthold-Georg Englert
The elements of micromaser physics are reviewed in a tutorial way. The emphasis is on the basic theoretical concepts, not on technical details or experimental subtleties. After a b…