Correlation functions of the one-dimensional attractive Bose gas.
The zero-temperature correlation functions of the one-dimensional attractive Bose gas with a delta-function interaction are calculated analytically for any value of the interaction parameter and number of particles, directly from the integrability of the model. We point out a number of interesting features, including zero recoil energy for a large number of particles, analogous to the Mössbauer effect.
Calabrese
Pasquale
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Dipartimento di Fisica dell'Università di Pisa and INFN, Pisa, Italy.
Caux
Jean-Sébastien
JS