Spectrum and States of the BCS Hamiltonian in a Finite Domain. II. Spectra of Excitations

• Дата: 2001
• Автори: Petrina, D. Ya., Петрина, Д. Я.
• Формат: Стаття
• Мова: Англійська
• Опубліковано: Institute of Mathematics, NAS of Ukraine 2001
• Онлайн доступ: https://umj.imath.kiev.ua/index.php/umj/article/view/4328
• Назва журналу: Ukrains’kyi Matematychnyi Zhurnal

We establish that the averages per volume of the BCS and approximating Hamiltonians over all excited states coincide in the thermodynamic limit. Earlier, this was established only for the ground state.