Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Patrick Azaria"'
The one dimensional $SU(2)$ Kondo Lattice model is studied by Density Matrix Renormalization Group away from half-filling. We find signatures of a Heavy Tomonaga-Luttinger Liquid (HTLL) phase, which describes one dimensional Heavy Fermions. We comput
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::379a81bcd5822b1ad1a43df3e3ec5181
https://europepmc.org/articles/PMC5960294/
https://europepmc.org/articles/PMC5960294/
Publikováno v:
Physical Review B
Physical Review B, American Physical Society, 2018, 98 (21), pp.214501. ⟨10.1103/PhysRevB.98.214501⟩
Phys.Rev.B
Phys.Rev.B, 2018, 98 (21), pp.214501. ⟨10.1103/PhysRevB.98.214501⟩
Physical Review B, American Physical Society, 2018, 98 (21), pp.214501. ⟨10.1103/PhysRevB.98.214501⟩
Phys.Rev.B
Phys.Rev.B, 2018, 98 (21), pp.214501. ⟨10.1103/PhysRevB.98.214501⟩
International audience; We develop a framework to analyze the topological properties of one-dimensional systems with charge conservation and tendency towards topological superconducting order. In particular, we consider models with N flavors of fermi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6ac273278b644d97e3a057161efdbd02
https://hal.archives-ouvertes.fr/hal-01719591
https://hal.archives-ouvertes.fr/hal-01719591
Publikováno v:
PHYS REV D PHYSICAL REVIEW D 94.
In this paper we study a (1+1)-dimensional version of the famous Nambu-Jona-Lasinio model of Quantum Chromodynamics (QCD2) both at zero and finite hadron density. We use non-perturbative techniques (non-Abelian bosonization and Truncated Conformal Sp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::686f0d7dc374d9210989380828d942ad
http://hdl.handle.net/10831/48869
http://hdl.handle.net/10831/48869
Publikováno v:
Physical Review B. 61:12112-12125
We study the effect of symmetry-breaking perturbations in the one-dimensional $\mathrm{SU}(4)$ spin-orbital model. We allow the exchange in spin ${(J}_{1})$ and orbital ${(J}_{2})$ channel to be different and thus reduce the symmetry to $\mathrm{SU}(
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cac94743656b1743176d4fd316f603e1
https://doi.org/10.1103/physrevb.61.12112
https://doi.org/10.1103/physrevb.61.12112
Publikováno v:
Physical Review Letters. 83:624-627
The one-dimensional spin-orbital model is studied by means of Abelian bosonization. We derive the low-energy effective theory which enables us to study small deviations from the SU(4) symmetric point. We show that there exists a massless region with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d7532e57347631886dd7517bc6caf03f
https://doi.org/10.1103/physrevlett.83.624
https://doi.org/10.1103/physrevlett.83.624
Publikováno v:
Physical Review B. 60:2299-2318
We investigate the metal-insulator transition of the one-dimensional $\mathrm{SU}(N)$ Hubbard model for repulsive interaction. Using the bosonization approach a Mott transition in the charge sector at half filling ${(k}_{F}=\ensuremath{\pi}{/Na}_{0})
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::04bb383c26612aebfa67e6418421ce8a
https://doi.org/10.1103/physrevb.60.2299
https://doi.org/10.1103/physrevb.60.2299
Publikováno v:
Physical Review B. 58:R8881-R8884
We study a model of three $S=1/2$ antiferromagnetic Heisenberg spin chains weakly coupled by on-rung and plaquette-diagonal interchain interactions. It is shown that the model exhibits a critical phase with central charge C=2 and belongs to the class
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8745c65e4e80c4356ba244b9d5ffa0f9
https://doi.org/10.1103/physrevb.58.r8881
https://doi.org/10.1103/physrevb.58.r8881
Publikováno v:
University of St Andrews CRIS
We study a model of a spin S = 1/2 Heisenberg antiferromagnet on a one dimensional lattice with the local symmetry of the two dimensional kagom{\'e} lattice. Using three complementary approaches, it is shown that the low energy spectrum can be descri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::347804764e0cb356136504575b63bdf9
https://doi.org/10.1103/physrevlett.81.1694
https://doi.org/10.1103/physrevlett.81.1694
Publikováno v:
Journal de Physique I. 3:291-298
We show that the finite size scaling analysis of the quantum non linear sigma model O(3)/O(2) associated with antiferromagnets justifies the existence of the tower of excited states first proposed by Anderson to explain the symmetry breaking of quant
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e854b5982947a743039c32d41dc018db
https://doi.org/10.1051/jp1:1993130
https://doi.org/10.1051/jp1:1993130
Publikováno v:
Physical Review A
Physical Review A, American Physical Society, 2009, 80 (4), 041604(R) [4 p.]. ⟨10.1103/PhysRevA.80.041604⟩
Physical Review A : Atomic, molecular, and optical physics [1990-2015]
Physical Review A : Atomic, molecular, and optical physics [1990-2015], 2009, 80 (4), 041604(R) [4 p.]. ⟨10.1103/PhysRevA.80.041604⟩
Physical Review A, American Physical Society, 2009, 80 (4), 041604(R) [4 p.]. ⟨10.1103/PhysRevA.80.041604⟩
Physical Review A : Atomic, molecular, and optical physics [1990-2015]
Physical Review A : Atomic, molecular, and optical physics [1990-2015], 2009, 80 (4), 041604(R) [4 p.]. ⟨10.1103/PhysRevA.80.041604⟩
We investigate the effect of the anisotropy between the s-wave scattering lengths of a three-component atomic Fermi gas loaded into a one-dimensional optical lattice. We find four different phases which support trionic instabilities made of bound sta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0a401276ffd60360f65b649b38f2b78c
https://hal.archives-ouvertes.fr/hal-00351440
https://hal.archives-ouvertes.fr/hal-00351440