Geodesic
Single-particle density matrix of a~one-dimensional system of spin~1/2 Fermi particles
Teoretičeskaâ i matematičeskaâ fizika, Tome 85 (1990) no. 3, pp. 443-449

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The long-wavelength asymptotic behavior of the single-particle density matrix in a system of Fermi particles with spin 1/2 and strong (repulsive) interaction is found. An expression for the corresponding critical exponent is also obtained. 
@article{TMF_1990_85_3_a8,
     author = {A. V. Zabrodin and A. A. Ovchinnikov},
     title = {Single-particle density matrix of a~one-dimensional system of spin~1/2 {Fermi} particles},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {443--449},
     publisher = {mathdoc},
     volume = {85},
     number = {3},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1990_85_3_a8/}
}
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A. V. Zabrodin; A. A. Ovchinnikov. Single-particle density matrix of a~one-dimensional system of spin~1/2 Fermi particles. Teoretičeskaâ i matematičeskaâ fizika, Tome 85 (1990) no. 3, pp. 443-449. http://geodesic.mathdoc.fr/item/TMF_1990_85_3_a8/