Sound Governance Analysis: Local Government Partnership Model In Village Community Empowerment

Sound governance reviews the partnership model between regions and civil society and international actors. International actors used as the unit of analysis in this study are PT Hyup Syung Purbalingga. This research is motivated by the results of a preliminary pre-survey, namely the absence of sustainability in the Padamara Village Community Empowerment Program conducted based on a partnership between the Padamara village government, PT Hyup Sung, and the Bojanegara Village Community. This study will further analyze the issue of partnership in Bojanegara Village Community Empowerment from a sound governance perspective, focusing on the involvement of PT Hyup Syung as an international actor in the process. This study is a type of descriptive research with a qualitative approach. Data obtained through key informants (key people) are determined purposively (purposive). The key person in this study is the executor of the Local Government, while other informants are some officials from PT. Hyup Sung Indonesia, and the villagers who were touched by the program were then determined by a snowball. In addition, documentation and observation studies are also used to capture relevant data. The presence of international parties participating in community empowerment in Indonesia, especially in the Purbalingga Regency, has not been realized as a potential. This is due to the limited resources of local governments as the sole actor in development, which should force the government to maximize any potential resource support from outside sources, whether private, public, or international. The form of partnership is an ideal desired by sound governance but has not been understood by the government at both the Purbalingga Regency government level and the Bojanegara village government level. In other words, positive partnerships between local governments, village governments, and NGOs have not occurred under the management of PT. Hyup Sung Indonesia

Generating a second-order topological insulator with multiple corner states by periodic driving

We study the effects of periodic driving on a variant of the Bernevig-Hughes-Zhang (BHZ) model defined on a square lattice. In the absence of driving, the model has both topological and nontopological phases depending on the different parameter values. We also study the anisotropic BHZ model and show that, unlike the isotropic model, it has a nontopological phase which has states localized on only two of the four edges of a finite-sized square. When an appropriate term is added, the edge states get gapped and gapless states appear at the four corners of a square; we have shown that these corner states can be labeled by the eigenvalues of a certain operator. When the system is driven periodically by a sequence of two pulses, multiple corner states may appear depending on the driving frequency and other parameters. We discuss to what extent the system can be characterized by topological invariants such as the Chern number and a diagonal winding number. We have shown that the locations of the jumps in these invariants can be understood in terms of the Floquet operator at both the time-reversal invariant momenta and other momenta which have no special symmetries.Comment: 14 pages, 29 figures; new discussion, figures, and references adde

Edge states, spin transport and impurity induced local density of states in spin-orbit coupled graphene

We study graphene which has both spin-orbit coupling (SOC), taken to be of the Kane-Mele form, and a Zeeman field induced due to proximity to a ferromagnetic material. We show that a zigzag interface of graphene having SOC with its pristine counterpart hosts robust chiral edge modes in spite of the gapless nature of the pristine graphene; such modes do not occur for armchair interfaces. Next we study the change in the local density of states (LDOS) due to the presence of an impurity in graphene with SOC and Zeeman field, and demonstrate that the Fourier transform of the LDOS close to the Dirac points can act as a measure of the strength of the spin-orbit coupling; in addition, for a specific distribution of impurity atoms, the LDOS is controlled by a destructive interference effect of graphene electrons which is a direct consequence of their Dirac nature. Finally, we study transport across junctions which separates spin-orbit coupled graphene with Kane-Mele and Rashba terms from pristine graphene both in the presence and absence of a Zeeman field. We demonstrate that such junctions are generally spin active, namely, they can rotate the spin so that an incident electron which is spin polarized along some direction has a finite probability of being transmitted with the opposite spin. This leads to a finite, electrically controllable, spin current in such graphene junctions. We discuss possible experiments which can probe our theoretical predictions.Comment: 21 pages, 19 figures; added some discussion and references; this is the final published versio

Shape invariance and the exactness of quantum Hamilton-Jacobi formalism

Quantum Hamilton-Jacobi Theory and supersymmetric quantum mechanics (SUSYQM) are two parallel methods to determine the spectra of a quantum mechanical systems without solving the Schr\"odinger equation. It was recently shown that the shape invariance, which is an integrability condition in SUSYQM formalism, can be utilized to develop an iterative algorithm to determine the quantum momentum functions. In this paper, we show that shape invariance also suffices to determine the eigenvalues in Quantum Hamilton-Jacobi Theory.Comment: Accepted for publication in Phys. Lett.