Quantum dot with N interacting electrons confined in a power-law external potential

Gülveren, Berna

doi:10.1016/j.solidstatesciences.2011.11.001

Cited by 14 publications

(9 citation statements)

References 41 publications

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“…In our previous work of phase space crystals [1], we used the model of ultracold atoms trapped in a timedependent power-law potential, i.e., x t cos n d ( ) w , to illustrate our idea. However, the power-law trapping [21][22][23][24][25] is technically difficult to be realized in experiments. In this work, we present a realistic model, i.e, the ultracold atom in driven optical lattice to realize phase space crystals.…”

Section: Introductionmentioning

confidence: 99%

Synthesizing lattice structures in phase space

Guo

Marthaler

2016

New J. Phys.

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In one dimensional systems, it is possible to create periodic structures in phase space through driving, which is called phase space crystals (Guo et al 2013 Phys. Rev. Lett. 111 205303). This is possible even if for particles trapped in a potential without periodicity. In this paper we discuss ultracold atoms in a driven optical lattice, which is a realization of such a phase space crystals. The corresponding lattice structure in phase space is complex and contains rich physics. A phase space lattice differs fundamentally from a lattice in real space, because its coordinate system, i.e., phase space, has a noncommutative geometry, which naturally provides an artificial gauge (magnetic) field. We study the behavior of the quasienergy band structure and investigate the dissipative dynamics. Synthesizing lattice structures in phase space provides a new platform to simulate the condensed matter phenomena and study the intriguing phenomena of driven systems far away from equilibrium.

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Section: Introductionmentioning

confidence: 99%

Synthesizing lattice structures in phase space

Guo

Marthaler

2016

New J. Phys.

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“…which is exact for a non-interacting system [50]. Updating the chemical potential and the density in a self-consistent procedure [51], we finally obtain the density that solves equation (46). After that, we slightly increase λ and start a new calculation, where the initial density is the final density from the previous calculation.…”

Section: Thomas-fermi Approximationmentioning

confidence: 99%

Quantum breathing mode of trapped systems in one and two dimensions

et al. 2014

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We investigate the quantum breathing mode (monopole oscillation) of trapped fermionic particles with Coulomb and dipole interaction in one and two dimensions. This collective oscillation has been shown to reveal detailed information on the many-particle state of interacting trapped systems and is thus a sensitive diagnostics for a variety of finite systems, including cold atomic and molecular gases in traps and optical lattices, electrons in metal clusters and in quantum confined semiconductor structures or nanoplasmas. An improved sum rule formalism allows us to accurately determine the breathing frequencies from the ground state of the system, avoiding complicated time-dependent simulations. In combination with the Hartree-Fock and the Thomas-Fermi approximations this enables us to extend the calculations to large particle numbers N on the order of several million. Tracing the breathing frequency to large N as a function of the coupling parameter of the system reveals a surprising difference of the asymptotic behavior of one-dimensional and two-dimensional harmonically trapped Coulomb systems.

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“…To open the new application of zeolite in health care as the capturer of nitrosamines in gastric juice, capture of NNN in aqueous solution by the acid-immerged zeolite is investigated, which is in the face of challenges arising from the acid immersion on the structure of zeolite and the selective adsorption. Several zeolites with different Si/Al ratios and pore structures, including NaY, ZSM-5 and MCM-22, are employed to study their structure variation after the acid leaching in the solution with the same pH value as that of gastric juice (Hou et al 2013 ). These samples are assessed to adsorb the NNN in aqueous solution, and the zeolites with Si/Al ratio of about 13 can keep their adsorption performance after acid treatment, rather, those with the Si/Al ratio of around 10 show the enhanced adsorption capability in deed.…”

Section: Liquid Adsorption Of Nitrosamines By Zeolitesmentioning

confidence: 99%

“…These samples are assessed to adsorb the NNN in aqueous solution, and the zeolites with Si/Al ratio of about 13 can keep their adsorption performance after acid treatment, rather, those with the Si/Al ratio of around 10 show the enhanced adsorption capability in deed. Besides, zeolite NaY and its dealuminated analogue NTY are proven to be safe for the cell of 293-T, and NTY can trap the NNN in the aqueous solution to reduce toxicity so that it is the valuable candidate to trap nitrosamines in stomach juice (Hou et al 2013 ).…”

Section: Liquid Adsorption Of Nitrosamines By Zeolitesmentioning

confidence: 99%

Pollutant Diseases, Remediation and Recycling

2013

Environmental Chemistry for a Sustainable World

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Quantum dot with N interacting electrons confined in a power-law external potential

Cited by 14 publications

References 41 publications

Synthesizing lattice structures in phase space

Synthesizing lattice structures in phase space

Quantum breathing mode of trapped systems in one and two dimensions

Pollutant Diseases, Remediation and Recycling

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