A discussion on particle number and quantum indistinguishability

The concept of individuality in quantum mechanics shows radical differences from the concept of individuality in classical physics, as E. Schroedinger pointed out in the early steps of the theory. Regarding this fact, some authors suggested that quantum mechanics does not possess its own language, and therefore, quantum indistinguishability is not incorporated in the theory from the beginning. Nevertheless, it is possible to represent the idea of quantum indistinguishability with a first order language using quasiset theory (Q). In this work, we show that Q cannot capture one of the most important features of quantum non individuality, which is the fact that there are quantum systems for which particle number is not well defined. An axiomatic variant of Q, in which quasicardinal is not a primitive concept (for a kind of quasisets called finite quasisets), is also given. This result encourages the searching of theories in which the quasicardinal, being a secondary concept, stands undefined for some quasisets, besides showing explicitly that in a set theory about collections of truly indistinguishable entities, the quasicardinal needs not necessarily be a primitive concept.Comment: 46 pages, no figures. Accepted by Foundations of Physic

Generalized probabilities in statistical theories

In this review article we present different formal frameworks for the description of generalized probabilities in statistical theories. We discuss the particular cases of probabilities appearing in classical and quantum mechanics, possible generalizations of the approaches of A. N. Kolmogorov and R. T. Cox to non-commutative models, and the approach to generalized probabilities based on convex sets

Generalizing entanglement via informational invariance for arbitrary statistical theories

Given an arbitrary statistical theory, different from quantum mechanics, how to decide which are the nonclassical correlations? We present a formal framework which allows for a definition of nonclassical correlations in such theories, alternative to the current one. This enables one to formulate extrapolations of some important quantum mechanical features via adequate extensions of reciprocal maps relating states of a system with states of its subsystems. These extended maps permit one to generalize i) separability measures to any arbitrary statistical model as well as ii) previous entanglement criteria. The standard definition of entanglement becomes just a particular case of the ensuing, more general notion.Comment: Improved versio

SISTEM INFORMASI MANUFAKTUR PADA PT. INDOPAL HARAPAN MURNI

The purpose of this paper is to analyze and design the manufacturing information systems at PT. Indopal Harapan Murni. The method used in building this application is the method of iterations. Analysis conducted among others by conducting a survey of the running system, conducting interviews and collecting data to obtain the information needed. And the results of the analysis and design of this application isexpected to provide convenience, increase effectiveness and efficiency for those whouse it

Convex politopes and quantum separability

We advance a novel perspective of the entanglement issue that appeals to the Schlienz-Mahler measure [Phys. Rev. A 52, 4396 (1995)]. Related to it, we propose an criterium based on the consideration of convex subsets of quantum states. This criterium generalizes a property of product states to convex subsets (of the set of quantum-states) that is able to uncover a new geometrical property of the separability property

On the connection between Complementarity and Uncertainty Principles in the Mach-Zehnder interferometric setting

We revisit, in the framework of Mach-Zehnder interferometry, the connection between the complementarity and uncertainty principles of quantum mechanics. Specifically, we show that, for a pair of suitably chosen observables, the trade-off relation between the complementary path information and fringe visibility is equivalent to the uncertainty relation given by Schr\"odinger and Robertson, and to the one provided by Landau and Pollak as well. We also employ entropic uncertainty relations (based on R\'enyi entropic measures) and study their meaning for different values of the entropic parameter. We show that these different values define regimes which yield qualitatively different information concerning the system, in agreement with findings of [A. Luis, Phys. Rev. A 84, 034101 (2011)]. We find that there exists a regime for which the entropic uncertinty relations can be used as criteria to pinpoint non trivial states of minimum uncertainty.Comment: 7 pages, 2 figure

IN SILICO STUDY OF YODIUM LEAF (JATROPHA MULTIFIDA LINN) ACTIVE COMPOUND AS ANTIBIOTIC FOR DIABETIC WOUNDS

Objective: In this study, an in silico test of 13 active compounds of leaf Jatropha multifida Linn. was carried out against the gyrase receptor (PDB ID: 2XCT). Methods: The methods include molecular docking, ADMET prediction, and a review of Lipinski's Rule of Five. Results: Molecular docking simulation results obtained three test compounds with free energy of binding (∆G) and inhibition constants (Ki) at active site A, which are lower than the comparison compound, ciprofloxacin (∆G-5.41 kcal/mol). The three compounds are C2 (multidione), C5 (citlalitrione), and C6 (cleomiscosin A) which have ΔG of-6.00,-6.90, and-5.56 kcal/mol. Based on ADMET prediction, compound C5 has better pharmacokinetics, pharmacodynamics, and toxic activities compared to ciprofloxacin. Conclusion: Therefore, C5 is the best active compound from J. multifida, which can be used as a candidate for new antibiotics in the treatment of diabetic wounds