Lattice calculations for two-component fermion systems with unequal masses: one dimension

Serdar ELHATISARI

Makale detayları

Lattice calculations for two-component fermion systems with unequal masses: one dimension

Yazarlar:

Serdar ELHATISARI

Yayıncı:

TUBITAK

Ana Başlıklar:

Uygulamalı fizik

Dergi:

Turkish Journal of Physics 2018 Vol.42 Issue 6, pp.631-640

Belge Tipi:

Makale

Yayın Tarihi:

12/2018

Belge Dili:

İngilizce

Document ID (Org No.):

2000759132

Sıklık:

İki Aylık

eISSN:

1303-6122

pISSN:

1300-0101

Özet:

 


 
                         We consider systems of two-component fermions with unequal masses and interacting via a short-range
attractive potential. We discuss the case where the two-component fermions form a shallow dimer with large scattering
length. The three-fermion and four-fermion systems with such properties are universal and characterized by the twofermion
scattering length aff and the ratio of the mass of spin-↑ fermion to the mass of spin-↓ fermion, m↑/m↓. In this
study, using lattice effective field theory, we analyze fermion-dimer and dimer-dimer systems and calculate the universal
fermion-dimer and dimer-dimer scattering lengths for various values of the mass ratio m↑/m↓. We find that these
universal scattering lengths increase logarithmically with the mass ratio m↑/m↓.

                    

.

Makale detayları

Lattice calculations for two-component fermion systems with unequal masses: one dimension

Yazarlar: Serdar ELHATISARI

Yayıncı: TUBITAK

Ana Başlıklar: Uygulamalı fizik

Dergi: Turkish Journal of Physics 2018 Vol.42 Issue 6, pp.631-640

Belge Tipi: Makale

Yayın Tarihi: 12/2018

Belge Dili: İngilizce

Document ID (Org No.): 2000759132

Sıklık: İki Aylık

eISSN: 1303-6122

pISSN: 1300-0101

Sayı

Yazarlar:

Serdar ELHATISARI

Yayıncı:

TUBITAK

Ana Başlıklar:

Uygulamalı fizik

Dergi:

Turkish Journal of Physics 2018 Vol.42 Issue 6, pp.631-640

Belge Tipi:

Makale

Yayın Tarihi:

12/2018

Belge Dili:

İngilizce

Document ID (Org No.):

2000759132

Sıklık:

İki Aylık

eISSN:

1303-6122

pISSN:

1300-0101