Deen Dayal Upadhyay Gorakhpur University

About: Deen Dayal Upadhyay Gorakhpur University is a education organization based out in Gorakhpur, Uttar Pradesh, India. It is known for research contribution in the topics: Thermal decomposition & Lymnaea acuminata. The organization has 1032 authors who have published 1591 publications receiving 21734 citations. The organization is also known as: Gorakhpur University.

Improvement on Quantum Teleportation of Three and Four Qubit States Using Multi-Qubit Cluster States

Abstract: In 2016, Li et al. [Int. J. Theor. Phys. 55, 1820–1823 (2016)] proposed schemes for quantum teleportation of certain class of three and four qubit states by utilizing four- and five- qubit cluster states, respectively, as the quantum channels. Moreover, their teleportation-schemes necessitates multi-qubit entangled states. In the present study, it has been demonstrated that these authors committed trivial errors while designing their teleportation schemes and, hence, quantum teleportation could not be perfectly achieved. It is seen that the tasks of teleporting aforementioned class of three and four qubit states can be accomplished by applying only a two-qubit maximally entangled states, i.e., single Bell state as the quantum channel. It is, therefore, an improvement on Li et al. teleportation-schemes is proposed, which not only reduces quantum resource consumption but also operation complexity.

Electrical and electroluminescent behaviour of SnO2—copper-phthalocyanine—Ag systems

Abstract: Electrical and electroluminescent properties of SnO2—copper-phthalocyanine—Ag systems are presented. Thin films of copper phthalocyanine and Ag are deposited in a vacuum of 10−5 Torr. I–U, C–U, and electroluminescent studies are made. It is observed that the system behaves as a combination of two Schottky diodes with two different saturation currents and in the breakdown region it shows a SCL behaviour. The electroluminescent emission brigthness variation with applied voltage at constant frequency is found to follow the relation B = Bo exp (−b/V1/2) over wide range of frequencies. An attempt is also made to explain the voltage dependence of electroluminescent emission. Es werden die elektrischen und Elektrolumineszenz-Eigenschaften von SnO2—Kupfer phthalozyanin—Ag-Systemen mitgeteilt. Dunne Schichten von Kupferphtalozyanin und Silber werden in einem Vakuum von 10−5 Torr aufgebracht. I–U-, C–U- und Elektrolumineszenzuntersuchungen werden durchgefuhrt. Es wird beobachtet, das die Systeme sich wie eine Kombination von zwei Schottkydioden mit zwei verschiedenen Sattigungsstromen verhalten und im Durchbruchsbereich ein raumladungsbegrenztes Verhalten zeigen. Die Anderung der Helligkeit der Elektrolumineszenz mit der angelegten Spannung bei konstanter Frequenz folgt der Beziehung B = B0 × exp (−b/V1/2) uber einen weiten Frequenzbereich. Es wird der Versuch gemacht, die Spannungsabhangigkeit der Elektrolumineszenz-Emission zu erklaren.