Stochastic Wave-Function Simulation of Irreversible Emission Processes for Open Quantum Systems in a Non-Markovian Environment

When conducting the numerical simulation of quantum transport, the main obstacle is a rapid growth of the dimension of entangled Hilbert subspace. The Quantum Monte Carlo simulation techniques, while being capable of treating the problems of high dimension, are hindered by the so-called "sign problem". In the quantum transport, we have fundamental asymmetry between the processes of emission and absorption of environment excitations: the emitted excitations are rapidly and irreversibly scattered away. Whereas only a small part of these excitations is absorbed back by the open subsystem, thus exercising the non-Markovian self-action of the subsystem onto itself. We were able to devise a method for the exact simulation of the dominant quantum emission processes, while taking into account the small backaction effects in an approximate self-consistent way. Such an approach allows us to efficiently conduct simulations of real-time dynamics of small quantum subsystems immersed in non-Markovian bath for large times, reaching the quasistationary regime. As an example we calculate the spatial quench dynamics of Kondo cloud for a bozonized Kodno impurity model.Comment: 7 pages, 3 figures, ICQT2017 Conference Proceedings; corrected a few typos; accepted for publication in the AIP Conference Proceedings journa

Characterization of the molecular and electrophysiological properties of the T-type calcium channel in human myometrium

Rises in intracellular calcium are essential for contraction of human myometrial smooth muscle (HMSM) and hence parturition. The T-type calcium channel may play a role in this process. The aim was to investigate the role of the T-Type calcium channel in HMSM by characterizing mRNA expression, protein localization, electrophysiological properties and function of the channel subunits Cav3.1(α1G), Cav3.2(α1H), and Cav3.3(α1I). QRT-PCR, immuno-histochemistry, electrophysiology and invitro contractility were performed on human myometrial samples from term, preterm, labour and not in labour. QRT-PCR analysis of Cav3.1, Cav3.2 and Cav3.3 demonstrated expression of Cav3.1 and Cav3.2 with no significant change (P>0.05) associated with gestation or labour status. Immuno-histochemistry localized Cav3.1 to myometrial and vascular smooth muscle cells whilst Cav3.2 localized to vascular endothelial cells and invading leukocytes. Voltage clamp studies demonstrated a T-type current in 55% of cells. Nickel block of T-type current was voltage sensitive (IC50 of 118.57±68.9 μM at - 30mV). Activation and inactivation curves of ICa currents in cells expressing T-type channels overlapped demonstrating steady state window currents at the resting membrane potential of myometrium at term. Current clamp analysis demonstrated that hyperpolarizing pulses to a membrane potential greater than -80mV elicited rebound calcium spikes that were blocked reversibly by 100μM nickel. Contractility studies demonstrated a reversible decrease in contraction frequency during application of 100μM nickel (P<0.05). We conclude that the primary T-type subunit expressed in some MSMCs is Cav3.1. We found that application of 100 μM nickel to spontaneously contracting human myometrium reversibly slows contraction frequency

Proximal contact alterations between implant-supported restorations and adjacent teeth in the posterior region : a 3-month prospective study

Interproximal contact loss (ICL) is a multifactorial implant complication. The aims of this prospective clinical study were to evaluate proximal contact alterations between implant-supported fixed prostheses (IFPs) and adjacent teeth and to identify pote

Reverse Contributors? African State Parties, ICSID, and the Development of International Investment Law

International investment disputes involving African states before the International Centre for Settlement of Investment Disputes (ICSID) have generated significant critical inquiry. Yet, accounts of their contribution to the development of international investment law as a result of these dispute are limited. This article addresses this gap. It examines the contribution of some of the high-profile ICSID disputes involving African states to the development of international investment law. Notwithstanding the charges against African States in ICSID, I contend that the involvement of African States in ICSID Disputes has contributed to the development of international investment law. In particular, the jurisprudence that these ICSID case law has generated, not only affirm principles of international investment law, but more importantly, have opened new paths over the years for the development of international investment law

IDENTIFICATION AND ANALYSIS OF THE FACTORS INFLUENCING THE COEFFICIENTS FOR THE COMPACTION OF ENERGY CHIPS LOADS

In Latvia the transportation of energy chips loads is carried out almost entirely by trucks. Due to the lack of hard empirical data on the compaction of energy chips loads transported by road, the currently used methodologies for the assessment of the volume of energy chips loads produce only rough estimates. In order to address this problem and fill the gap, this research paper offers: - the methodology for the determination of the coefficients for the compaction of energy chips loads depending on their transportation distance by trucks; - the values of the coefficients for the compaction of energy chips loads for different transportation distances and different kinds of trucks; - the identification and analysis of the factors that influenced the values of energy chips loads compaction coefficients

1962 Oberlin vs. Otterbein Football Program

https://digitalcommons.otterbein.edu/athletics_program/1001/thumbnail.jp

Estudio histológico e histomorfométrico de la respuesta ósea de implantes dentales en cerdos minipigs

Preprin