Communications in Physics  

Doan Nhat Quang,Nguyen Huyen Tung,Nguyen Trung Hong,Tran Thi Hai

We present a theoretical study of the effects from symmetric modulation of the envelop wave function on quantum transport in square quantum wells (QWs). Within the variational approach we obtain analytic expressions for the carrier distribu... see more

Le Tuan,Nguyen Thanh Tien,Tran Thi An,Doan Nhat Quang

We present a theoretical study of roughness-related scatteringmechanisms for electrons in single heterostructures, especilaly in Gaussian-doped ZnO surface quantum wells. We show that besides the conventional scatterings there must existroughness-related ... see more

Nguyen Thi Thuy Nhung,Le Thanh Tung,Nguyen Duc Giang,Ngo Van Thanh,Nguyen Ai Viet

This study first considers that voltages of cellular organelle membranes could significanly surpass these of plasma membranes under the influence of ultrashort and high-intensity electric pulse. This is due to the voltages induced on the membrane. Using a... see more

Vu Van Hung,Ho Khac Hieu,Nguyen Van Hung

In present article the pressure dependence of Debye-Waller factors in crystals has been investigated by using statistical moment method and anharmonic correlated Einstein model. These two methods provide similar results which indicate that the Debye-Walle... see more

Vu Van Hung,Phan Thi Thanh Hong,Nguyen Thanh Hai

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Truong Minh Duc,Nguyen Thi Xuan Hoai

In this paper, we use a criterion provided by E. Shchukin and W. Vogel [Phys. Rev. Lett. 95, 230502 (2005)] for determining when a bipartite quantum state is entangled. We first show that the entanglement criterion is necessary and sufficient condition fo... see more

Bui Dinh Hoi,Vo Thanh Lam,Tran Cong Phong

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Nguyen Quang Bau,Nguyen Van Hieu,Nguyen Thi Thuy,Tran Cong Phong

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Vu Ngoc Tuoc,Nguyen Viet Minh

We present a first-principle study on the atomic and electronic structure of AlN Nanowire and examine the dependence of surface stress on nanowire lateral size and shape. The hexagonal wire size ranging as 10-16-22\AA\ and triangular wire ranging from 10-... see more

Ho Quang Quy,Mai Van Luu,Vu Ngoc Sau

The condition to match the pumped-volume's width with the laser mode-volume's waist in a diode four side pumped solid-state laser is analyzed by numeric solutions of the approximation equation. As a result, the dependences of pumped volume's width on pump... see more

Nguyen Vien Tho,Nguyen Quoc Hoan

The parallel between Yang-Mills theory and General Relativity isan attractive topic that motivated a lot of interestingresearches. Various versions of the gauge theory of gravity wereproposed which provided a deep understanding of such basisconcepts as th... see more

Tran Huu Phat,Le Viet Hoa,Nguyen Tuan Anh,Nguyen Van Long

Based on the Cornwall-Jackiw-Tomboulis (CJT) effective action approach a theoretical formalism is established for studying the Bose-Einstein condensation (BEC) in a binary mixture of Bose gases. The effective potential, which preserves the Goldstone theor... see more