2k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Russian Academy of SciencesRU151 papers
- University of TrentoIT90 papers
- National Research University Higher School of EconomicsRU47 papers
- Moscow Institute of Physics and TechnologyRU45 papers
- ETH ZurichCH32 papers
- Istituto Nazionale per la Fisica della MateriaIT27 papers
- Laboratory for Solid State PhysicsCH26 papers
- Institute of PhysicsPL22 papers
- Landau Institute for Theoretical PhysicsRU20 papers
- A.V. Shubnikov Institute of CrystallographyRU17 papers
- Technion – Israel Institute of TechnologyIL16 papers
- University of AugsburgDE16 papers
35 papers · 1 filter
Decay of the relative phase domain wall into confined vortex pairs: the case of a coherently coupled bosonic mixture
Albert Gallemí, Lev P. Pitaevskii, Sandro Stringari +1
A domain wall of relative phase in a flattened harmonically-trapped Bose-Einstein condensed mixture of two atomic hyperfine states, subject to a stationary Rabi coupling of intensi…
Phase diagrams of polarized ultra-cold gases on attractive-U Hubbard ladders
E. Burovski, R. Sh. Ikhsanov, A. A. Kuznetsov +1
We consider a quasi-one-dimensional model of a two-component Fermi gas at zero temperature on one, two and three-leg attractive-U Hubbard ladders. We construct the grand canonical…
Magnetic defects in an unbalanced mixture of two Bose-Einstein condensates
A. Gallemí, L. P. Pitaevskii, S. Stringari +1
When the spectrum of magnetic excitations of a quantum mixture is much softer than the density spectrum, the system becomes effectively incompressible and can host magnetic defects…
Collisionless sound in a uniform two-dimensional Bose gas
Miki Ota, Fabrizio Larcher, Franco Dalfovo +3
Using linear response theory within the Random Phase Approximation, we investigate the propagation of sound in a uniform two dimensional (2D) Bose gas in the collisionless regime.…
Spin-orbit-coupling induced localization in the expansion of an interacting Bose-Einstein condensate
Chunlei Qu, Lev P. Pitaevskii, Sandro Stringari
By developing a hydrodynamic formalism, we investigate the expansion dynamics of the single-minimum phase of a binary spin-orbit coupled Bose-Einstein condensate, after releasing f…
Dynamics of solitary waves in ultracold gases in terms of observable quantities
L. P. Pitaevskii
A variety of solitary waves, such as solitons, vortex rings, solitonic vortices, and more complex entities, have recently been predicted to exist. They can move in superfluid ultra…
Magnetic solitons in Rabi-coupled Bose-Einstein condensates
Chunlei Qu, Marek Tylutki, Sandro Stringari +1
We study magnetic solitons, solitary waves of spin polarization (i.e., magnetization), in binary Bose-Einstein condensates in the presence of Rabi coupling. We show that the system…
Expansion of harmonically trapped interacting particles and time dependence of the contact
Chunlei Qu, Lev P. Pitaevskii, Sandro Stringari
We study the expansion of an interacting atomic system at zero temperature, following its release from an isotropic three-dimensional harmonic trap and calculate the time dependenc…
Superfluid Density of a Spin-orbit Coupled Bose Gas
Yi-Cai Zhang, Zeng-Qiang Yu, Tai Kai Ng +3
We discuss the superfluid properties of a Bose-Einstein condensed gas with spin-orbit coupling, recently realized in experiments. We find a finite normal fluid density at zer…
Magnetic Solitons in a Binary Bose-Einstein Condensate
Chunlei Qu, Lev P. Pitaevskii, Sandro Stringari
We study solitary waves of polarization (magnetic solitons) in a two-component Bose gas with slightly unequal repulsive intra- and interspin interactions. In experimentally relevan…
Confinement and precession of vortex pairs in coherently coupled Bose-Einstein condensates
Marek Tylutki, Lev P. Pitaevskii, Alessio Recati +1
The dynamic behavior of vortex pairs in two-component coherently (Rabi) coupled Bose-Einstein condensates is investigated in the presence of harmonic trapping. We discuss the role…
Quantized conductance through the quantum evaporation of bosonic atoms
D. J. Papoular, L. P. Pitaevskii, S. Stringari
We analyze theoretically the quantization of conductance occurring with cold bosonic atoms trapped in two reservoirs connected by a constriction with an attractive gate potential.…
Hybridization of first and second sound in a weakly-interacting Bose gas
Lucas Verney, Lev Pitaevskii, Sandro Stringari
Using Landau's theory of two-fluid hydrodynamics we investigate the sound modes propagating in a uniform weakly-interacting superfluid Bose gas for values of temperature, up to the…
Solitonic Vortices in Bose-Einstein Condensates
Marek Tylutki, Simone Donadello, Simone Serafini +4
We analyse, theoretically and experimentally, the nature of solitonic vortices (SV) in an elongated Bose-Einstein condensate. In the experiment, such defects are created via the Ki…
On the momentum of solitons and vortex rings in a superfluid
L. P. Pitaevskii
This paper is devoted to the calculation of the momentum of localized excitations, such as solitons and vortex rings, moving in a superfluid. The direct calculation of the momentum…
Fast thermalization and Helmholtz oscillations of an ultracold Bose gas
D. J. Papoular, L. P. Pitaevskii, S. Stringari
We analyze theoretically the transport properties of a weakly-interacting ultracold Bose gas enclosed in two reservoirs connected by a constriction. We assume that the transport of…
Observation of Solitonic Vortices in Bose-Einstein Condensates
Simone Donadello, Simone Serafini, Marek Tylutki +4
We observe solitonic vortices in an atomic Bose-Einstein condensate after free expansion. Clear signatures of the nature of such defects are the twisted planar density depletion ar…
Hydrodynamic theory of motion of quantized vortex rings in trapped superfluid gases
Lev P. Pitaevskii
I study vortex ring oscillations in a superfluid, trapped in an elongated trap, under the conditions of the Local Density Approximation. On the basis of the Hamiltonian formalism I…
Snake instability of dark solitons in fermionic superfluids
A. Cetoli, J. Brand, R. G. Scott +2
We present numerical calculations of the snake instability in a Fermi superfluid within the Bogoliubov-de Gennes theory of the BEC to BCS crossover using the random phase approxima…
Supercurrent and dynamical instability of spin-orbit-coupled ultracold Bose gases
Tomoki Ozawa, Lev P. Pitaevskii, Sandro Stringari
We investigate the stability of supercurrents in a Bose-Einstein condensate with one-dimensional spin-orbit and Raman couplings. The consequence of the lack of Galilean invariance…
Superstripes and the excitation spectrum of a spin-orbit-coupled Bose-Einstein condensate
Yun Li, Giovanni I. Martone, Lev P. Pitaevskii +1
Using Bogoliubov theory we calculate the excitation spectrum of a spinor Bose-Einstein condensed gas with equal Rashba and Dresselhaus spin-orbit coupling in the stripe phase. The…
Scaling solutions of the two fluid hydrodynamic equations in a harmonically trapped gas at unitarity
Yan-Hua Hou, Lev P. Pitaevskii, Sandro Stringari
We prove that the two fluid Landau hydrodynamic equations, when applied to a gas interacting with infinite scattering length (unitary gas) in the presence of harmonic trapping, adm…
First and second sound in a highly elongated Fermi gas at unitarity
Yan-Hua Hou, Lev P. Pitaevskii, Sandro Stringari
We consider a Fermi gas at unitarity trapped by a highly elongated harmonic potential and solve the equations of two fluid hydrodynamics at finite temperature. The propagation of s…
Rapid ramps across the BEC-BCS crossover: a novel route to measuring the superfluid gap
R. G. Scott, F. Dalfovo, L. P. Pitaevskii +1
We investigate the response of superfluid Fermi gases to rapid changes of the three-dimensional s-wave scattering length a by solving the time-dependent Bogoliubov-de Gennes equati…