Zobrazeno 1 - 10
of 106
pro vyhledávání: '"Boulat, E."'
Publikováno v:
Eur. Phys. J. Special Topics 229, 663 (2020)
We review the intriguing many-body physics resulting out of the interplay of a single, local impurity and the two-particle interaction in a one-dimensional Fermi system. Even if the underlying homogeneous correlated system is taken to be metallic, th
Externí odkaz:
http://arxiv.org/abs/1912.04578
Autor:
Anthore, A., Iftikhar, Z., Boulat, E., Parmentier, F. D., Cavanna, A., Ouerghi, A., Gennser, U., Pierre, F.
Publikováno v:
Phys. Rev. X 8, 031075 (2018)
The Tomonaga-Luttinger liquid (TLL) concept is believed to generically describe the strongly-correlated physics of one-dimensional systems at low temperatures. A hallmark signature in 1D conductors is the quantum phase transition between metallic and
Externí odkaz:
http://arxiv.org/abs/1809.02017
Publikováno v:
Phys. Rev. B 84, 125123 (2011)
We investigate the nature of the Mott-insulating phases of half-filled 2N-component fermionic cold atoms loaded into a one-dimensional optical lattice. By means of conformal field theory techniques and large-scale DMRG calculations, we show that the
Externí odkaz:
http://arxiv.org/abs/1107.0171
Publikováno v:
Phys. Rev. B 82, 155134 (2010)
By using a combination of several non-perturbative techniques -- a one-dimensional field theoretical approach together with numerical simulations using density matrix renormalization group -- we present an extensive study of the phase diagram of the
Externí odkaz:
http://arxiv.org/abs/1006.3884
Publikováno v:
Phys. Rev. Lett. 105, 146805 (2010)
By using two independent and complementary approaches, we compute exactly the shot noise in an out-of-equilibrium interacting impurity model, the Interacting Resonant Level model at its self-dual point. An analytical approach based on the Thermodynam
Externí odkaz:
http://arxiv.org/abs/1004.4811
Publikováno v:
Phys. Rev. B 82, 205414 (2010)
We present a method to determine the shot noise in quantum systems from knowledge of their time evolution - the latter being obtained using numerical simulation techniques. While our ultimate goal is the study of interacting systems, the main issues
Externí odkaz:
http://arxiv.org/abs/1004.4784
Publikováno v:
Phys. Rev. B 81, 020408(R) (2010)
A Haldane conjecture is revealed for spin-singlet charge modes in 2N-component fermionic cold atoms loaded into a one-dimensional optical lattice. By means of a low-energy approach and DMRG calculations, we show the emergence of gapless and gapped ph
Externí odkaz:
http://arxiv.org/abs/0906.3528
Publikováno v:
Nucl. Phys. B 822 (2009) 367
We investigate the possible classification of zero-temperature spin-gapped phases of multicomponent electronic systems in one spatial dimension. At the heart of our analysis is the existence of non-perturbative duality symmetries which emerge within
Externí odkaz:
http://arxiv.org/abs/0812.2620
Publikováno v:
Phys. Rev. Lett. 101, 140601 (2008)
We calculate the full $I-V$ characteristics at vanishing temperature in the self-dual interacting resonant level model in two ways. The first uses careful time dependent DMRG with large number of states per block and a representation of the reservoir
Externí odkaz:
http://arxiv.org/abs/0806.3731
Publikováno v:
Int. J. Mod. Phys. E 17, 2110 (2008)
We investigate the possible formation of a molecular condensate, which might be, for instance, the analogue of the alpha condensate of nuclear physics, in the context of multicomponent cold atoms fermionic systems. A simple paradigmatic model of N-co
Externí odkaz:
http://arxiv.org/abs/0806.2556