Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Zlabys, Giedrius"'
We study the exact nonequilibrium spectral function of a gas of strongly correlated Tonks-Girardeau bosons subjected to a strong periodic drive. Utilizing the theory of Floquet spectral function in conjunction with the Bose-Fermi mapping theorem, we
Externí odkaz:
http://arxiv.org/abs/2412.17443
We investigate the nonequilibrium dynamics of a groundstate fermionic many body gas subjected to a quench between parameter regimes of a topologically nontrivial Hamiltonian. By focusing on the role of the chiral edge states inherent to the system, w
Externí odkaz:
http://arxiv.org/abs/2412.02098
Lieb excitations are fundamental to the understanding of the low energy behaviour of many-body quantum gases. Here we study the spectral function of a Tonks-Girardeau gas in a finite sized Kronig-Penney potential and show that the Lieb-I and Lieb-II
Externí odkaz:
http://arxiv.org/abs/2410.13302
Autor:
Yanes, Tanausú Hernández, Žlabys, Giedrius, Płodzień, Marcin, Burba, Domantas, Sinkevičienė, Mažena Mackoit, Witkowska, Emilia, Juzeliūnas, Gediminas
Publikováno v:
Phys. Rev. B 108, 104301 (2023)
Spin squeezing protocols successfully generate entangled many-body quantum states, the key pillars of the second quantum revolution. In our recent work [Phys. Rev. Lett. 129, 090403 (2022)] we showed that spin squeezing described by the one-axis twis
Externí odkaz:
http://arxiv.org/abs/2302.09829
We apply the method of flow equations to describe quantum systems subject to a time-periodic drive with a time-dependent envelope. The driven Hamiltonian is expressed in terms of its constituent Fourier harmonics with amplitudes that may vary as a fu
Externí odkaz:
http://arxiv.org/abs/2111.15368
Spatially strongly confined atomic excitation via two dimensional stimulated Raman adiabatic passage
Autor:
Hamedi, Hamid R., Zlabys, Giedrius, Ahufinger, Veronica, Halfmann, Thomas, Mompart, Jordi, Juzeliunas, Gediminas
Publikováno v:
Opt. Express 30, 13915-13930 (2022)
We consider a method of sub-wavelength superlocalization and patterning of atomic matter waves via a two dimensional stimulated Raman adiabatic passage (2D STIRAP) process. An atom initially prepared in its ground level interacts with a doughnut-shap
Externí odkaz:
http://arxiv.org/abs/2111.03750
Publikováno v:
Phys. Rev. B 103, 100301 (2021)
Time crystalline structures are characterized by regularity that single-particle or many-body systems manifest in the time domain, closely resembling the spatial regularity of ordinary space crystals. Here we show that time and space crystalline stru
Externí odkaz:
http://arxiv.org/abs/2012.02783
Autor:
Hamedi, Hamid Reza, Paspalakis, Emmanuel, Žlabys, Giedrius, Juzeliūnas, Gediminas, Ruseckas, Julius
Publikováno v:
Phys. Rev. A 100, 023811 (2019)
We propose a procedure to achieve a complete energy conversion between laser pulses carrying orbital angular momentum (OAM) in a cloud of cold atoms characterized by a double-\Lambda atom-light coupling scheme. A pair of resonant spatially dependent
Externí odkaz:
http://arxiv.org/abs/1905.00351
Publikováno v:
Phys. Rev. A 93, 043618 (2016)
We propose a simple scheme for the realization of a topological quasienergy band structure with ultracold atoms in a periodically driven optical square lattice. It is based on a circular lattice shaking in the presence of a superlattice that lowers t
Externí odkaz:
http://arxiv.org/abs/1602.06784
Autor:
Anisimovas, Egidijus, Žlabys, Giedrius, Anderson, Brandon M., Juzeliūnas, Gediminas, Eckardt, André
Publikováno v:
Phys. Rev. B 91, 245135 (2015)
Fractional Chern insulators are the proposed phases of matter mimicking the physics of fractional quantum Hall states on a lattice without an overall magnetic field. The notion of Floquet fractional Chern insulators refers to the potential possibilit
Externí odkaz:
http://arxiv.org/abs/1504.03583