Free expansion of a Lieb-Liniger gas: Asymptotic form of the wave functions

The asymptotic form of the wave functions describing a freely expanding Lieb-Liniger gas is derived by using a Fermi-Bose transformation for time-dependent states, and the stationary phase approximation. We find that asymptotically the wave functions approach the Tonks-Girardeau (TG) structure as they vanish when any two of the particle coordinates coincide. We point out that the properties of these asymptotic states can significantly differ from the properties of a TG gas in a ground state of an external potential. The dependence of the asymptotic wave function on the initial state is discussed. The analysis encompasses a large class of initial conditions, including the ground states of a Lieb-Liniger gas in physically realistic external potentials. It is also demonstrated that the interaction energy asymptotically decays as a universal power law with time, $E_\mathrm{int}\propto t^{-3}$.Comment: Section VI added to v2; published versio

Synthetic Lorentz force in classical atomic gases via Doppler effect and radiation pressure

We theoretically predict a novel type of synthetic Lorentz force for classical (cold) atomic gases, which is based on the Doppler effect and radiation pressure. A fairly uniform and strong force can be constructed for gases in macroscopic volumes of several cubic millimeters and more. This opens the possibility to mimic classical charged gases in magnetic fields, such as those in a tokamak, in cold atom experiments.Comment: are welcom

Laser assisted tunneling in a Tonks-Girardeau gas

We investigate the applicability of laser assisted tunneling in a strongly interacting one-dimensional Bose gas (the Tonks-Girardeau gas) in optical lattices. We find that the stroboscopic dynamics of the Tonks-Girardeau gas in a continuous Wannier-Stark-ladder potential, supplemented with laser assisted tunneling, effectively realizes the ground state of one-dimensional hard-core bosons in a discrete lattice with nontrivial hopping phases. We compare observables that are affected by the interactions, such as the momentum distribution, natural orbitals and their occupancies, in the time-dependent continuous system, to those of the ground state of the discrete system. Stroboscopically, we find an excellent agreement, indicating that laser assisted tunneling is a viable technique for realizing novel ground states and phases with hard-core one-dimensional Bose gases.Comment: 17 pages, 5 figure

Organizational maturity for co-creation: Towards a multi-attribute decision support model for public organizations

The paper conceptualizes a multi-attribute decision support model for the assessment of organizational maturity for co-creation, specifically for public organizations. This is achieved on the basis of a systematic literature review (i.e. content analysis) and analysis of two European case studies of promising collaborative practices (from UK and Slovenia). The co-creation drivers and barriers elicited from these two sources are integrated in a decision support model, thus setting the layout of a multi-attribute decision support model for the assessment of organizational maturity for co-creation. The final model conceptualized here consists of 25 attributes or criteria grouped into three categories: organization capacity, staff capacity, and a wider political and normative context in which public organizations act

Organizational readiness for co-creation of public services in the central and eastern european administrative tradition: Development of the conceptual multi-attribute decision support model

Co-creation of public services and policies is considered a promising practice of re-shaping the traditional relationship between the state and its citizens, businesses and non-governmental organizations (NGOs). Nevertheless, there are also warnings that the implementation of the process of co-creation could fail. A possible reason is that the organization is not ready or sufficiently mature to implement the process of co-creation. This paper addresses co-creation drivers and barriers identified through systematic literature review and analysis of case studies from two Central and Eastern European (CEE) countries. The aim of this paper is to provide practitioners from CEE countries with a conceptual multi-attribute decision support model for evaluating the organizational readiness for co-creation. The methodological framework consists of three steps. The first two steps, content analysis (i.e. literature review) and case-study analysis, were used to identify and analyze drivers and barriers, which are then used in the last step to develop the conceptual multi-attribute decision support model. The developed model consists of 26 attributes grouped into three categories: Capacity of the organization, drivers and barriers related to internal (public organization) co-creators, and context related drivers and barriers. The key points for practitioners are: •Co-creation drivers and barriers affect organizations at the beginning of their co-creation journey (i.e. in identifying the key co-creation success factor at the organizational level); •Co-creation drivers and barriers serve as guidance to organizations that were unsuccessful in co-creation; •The conceptual model supporting the evaluation of co-creation readiness serves as a tool to those that consider implementing co-creation; •The model offers an insight into a possible methodology for evaluation of readiness in different areas; •For practitioners from the CEE region, co-creation drivers and barriers, together with the conceptual multi-attribute decision support model supporting the evaluation of co-creation readiness, offer a roadmap to successful co-creation

Polarografsko ispitivanje alkaloida. I

Izvedeno je polarografsko ispitivanje otopina kinidina sa svrhom da se ustanovi priroda vala, koji prethodi katalitickom izlučivanju vodika. Utvrdeno je, da se radi o adsorpcionom valu i izračunata je količina adsorbiranog redukcionog produkta

Polarografsko ispitivanje alkaloida. I

Izvedeno je polarografsko ispitivanje otopina kinidina sa svrhom da se ustanovi priroda vala, koji prethodi katalitickom izlučivanju vodika. Utvrdeno je, da se radi o adsorpcionom valu i izračunata je količina adsorbiranog redukcionog produkta