Dr. Guo-Hua Sun
Instituto Politécnico Nacional, Mexico City, Mexico
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Academic Career Length
23Years (2004-Present)
(Calculated once Scilit publication data is synced: current year − year of first publication + 1)
Representative Publications
View All Publications17 August 2018 in Physical Review A
Journal Article
We apply genuine multipartite entanglement concurrence to investigate entanglement properties of Dirac fields in noninertial frames. We present analytical concurrences for bipartite and tripartite entanglements simultaneously, which enriches previous results. We note that the entanglement of the Greenberger-Horne-Zeilinger-like state is degraded by the Unruh effect, but this entangled system always remains entangled to a degree and can be used in quantum teleportation between parties in relatively uniform acceleration. We find that all tripartite subsystems in noninertial frames are monogamous in that they all satisfy Coffmann-Kundu-Wootters monogamous inequality. We also find two useful relations regarding concurrences.
30 April 2015 in International Journal of Quantum Chemistry
Journal Article
Guo-Hua SunSDShi‐Hai Dong
Shi‐Hai Dong
KLKristina D. Launey
Kristina D. Launey
TDTomas Dytrych
Tomas Dytrych
JDJerry Draayer
Jerry Draayer29 September 2015 in Chinese Physics B
Journal Article
Guo-Hua SunDPDusan POPOV
Dusan POPOV
Oscar Camacho-Nieto
SHIHAI DONG2 May 2016 in Physical Review E
Journal Article
BFBabatunde Falaye
Babatunde FalayeGuo-Hua SunRSRAMON SILVA-ORTIGOZA
RAMON SILVA-ORTIGOZASHIHAI DONGThis study presents the confinement influences of Aharonov-Bohm (AB) flux and electric and magnetic fields directed along the axis and encircled by quantum plasmas on the hydrogen atom. The all-inclusive effects result in a strongly attractive system while the localizations of quantum levels change and the eigenvalues decrease. We find that the combined effect of the fields is stronger than a solitary effect and consequently there is a substantial shift in the bound state energy of the system. We also find that to perpetuate a low-energy medium for the hydrogen atom in quantum plasmas, a strong electric field and weak magnetic field are required, whereas the AB flux field can be used as a regulator. The application of the perturbation technique utilized in this paper is not restricted to plasma physics; it can also be applied in molecular physics.
16 November 2019 in Frontiers of Physics
Journal Article
QDQian Dong
Qian DongATAriadna J. Torres-Arenas
Ariadna J. Torres-ArenasGuo-Hua SunSHIHAI DONGUsing the single-mode approximation, we first calculate entanglement measures such as negativity (1–3 and 1–1 tangles) and von Neumann entropy for a tetrapartite W-Class system in noninertial frame and then analyze the whole entanglement measures, the residual π4 and geometric Π4 average of tangles. Notice that the difference between π4 and Π4 is very small or disappears with the increasing accelerated observers. The entanglement properties are compared among the different cases from one accelerated observer to four accelerated observers. The results show that there still exists entanglement for the complete system even when acceleration r tends to infinity. The degree of entanglement is disappeared for the 1–1 tangle case when the acceleration r > 0.472473. We reexamine the Unruh effect in noninertial frames. It is shown that the entanglement system in which only one qubit is accelerated is more robust than those entangled systems in which two or three or four qubits are accelerated. It is also found that the von Neumann entropy S of the total system always increases with the increasing accelerated observers, but the Sκξ and Sκζδ with two and three involved noninertial qubits first increases and then decreases with the acceleration parameter r, but they are equal to constants 1 and 0.811278 respectively for zero involved noninertial qubit.
Journal Article
CGCarlos Ariel Gil-Barrera
Carlos Ariel Gil-BarreraRCRaymundo Santana Carrillo
Raymundo Santana CarrilloGuo-Hua SunSHIHAI DONGIn this work, we study the quantum information entropies for two different types of hyperbolic single potential wells. We first study the behaviors of the moving particle subject to two different hyperbolic potential wells through focusing on their wave functions. The shapes of these hyperbolic potentials are similar, but we notice that their momentum entropy densities change along with the width of each potential and the magnitude of position entropy density decreases when the momentum entropy magnitude increases. On the other hand, we illustrate the behaviors of their position and momentum entropy densities. Finally, we show the variation of position and momentum entropies and with the change of the potential well depth u and verify that their sum still satisfies the BBM inequality relation.
About Me
Dra. Sun GuoHua, received her Bachelor of Science in Mathematics from Dalian University, China in 1993. She graduated with a Master's Degree in Computer Science in 2005 at the Institute of Applied Mathematics and Systems Research of the National Autonomous University of Mexico (UNAM). She graduated as a doctorate in Physical-Mathematical Sciences at the Higher School of Physics and Mathematics of the National Polytechnic Institute (IPN) in February 2012, obtaining honorable mention and the best thesis of IPN 2012. She worked as a Full-time Professor and Researcher, at the UAEM since May 2012 and was the leader of an academic body “Quantum Computing and Quantum Information. In October 2014, she carried out the CONACYT project: “Development of quantum information technologies in the CIC-IPN” and is now a full time professor and researcher at IPN. Her research lines are quantum computing and quantum information, applied mathematics, confined quantum systems and scientific computing. She has authored and co-authored 92 papers in JCR journals, in addition to a book chapter, published by Springer. The citation is almost 2000 (índice h 22) by Scopus. She participates in projects financed by UAEM, PROMEP and IPN; she is also an evaluator of CONACYT projects and international scholarships. She is a national researcher on the highest level.