Frontiers in Science

Frontiers in Science is a peer-reviewed, open access journal that publishes original research articles as well as review articles in all areas of science and technology.

Jeong Ryeol Choi

Editorial Board Member of Frontiers in Science

Professor, Daegu Health College, South Korea

Research Areas

Quantum Optics, Quantum Physics

Education

1996-2001Ph.D.Korea University, Department of Physics, Republic of Korea
1993-1995M.Sc. Korea University, Department of Physics, Republic of Korea
1989-1993B.Sc.Hankuk University of Foreign Studies, Department of Electronic Physics, Republic of Korea

Experience

2010–presentProfessor, Department of Radiologic Technology, Daegu Health College, Republic of Korea
2003–2008Professor, Department of Advanced Materials, Sunmoon University, Republic of Korea

Publications: Journals

[1]  Gaussian wave packet for a time-dependent harmonic oscillator model of a charged particle in a variable magnetic field S. Menouar, M. Maamache, and J. R. Choi, Chinese Journal of Physics, 49(4), 871-876 (2011).
[2]  Information theories for time-dependent harmonic oscillator J. R. Choi, M.-S. Kim, Daeyeoul Kim, M. Maamache, S. Menouar, and I. H. Nahm, Annals of Physics 326(6), 1381-1393 (2011).
[3]  An approach to dark energy problem through linear invariants J. R. Choi, Chinese Physics C 35(3), 233-242 (2011).
[4]  Gaussian wave packet for time-dependent Hamiltonian systems involving quadratic, inverse quadratic, and (1/x)p+p(1/x) terms S. Menouar, M. Maamache, H. Bekkar, and J. R. Choi, Journal of the Korean Physical Society 58(1), 154-157 (2011).
[5]  Interpreting quantum states of electromagnetic field in time-dependent linear media J. R. Choi, Physical Review A 82(5), 055803(1-4) (2010).
[6]  The time-dependent coupled oscillator model for the motion of a charged particle in the presence of a time-varying magnetic field S. Menouar, M. Maamache, and J. R. Choi, Physica Scripta 82(6), 065004(1-7) (2010).
[7]  An alternative approach to exact wave functions for time-dependent coupled oscillator model of charged particle in variable magnetic field S. Menouar, M. Maamache, and J. R. Choi, Annals of Physics 325(8), 1708-1719 (2010).
[8]  Stochastic quantization of Brownian particle motion obeying Kramers equation J. R. Choi and Yeontaek Choi, Journal of the Physical Society of Japan 79(6), 064004(1-6) (2010).
[9]  Gaussian wave packet solution of the Schrodinger equation in the presence of a time-dependent linear potential M. Maamache, Y. Saadi, J. R. Choi, and K. H. Yeon, Journal of the Korean Physical Society 56(4), 1063-1067 (2010).
[10]  Thermofield dynamics for two-dimensional dissipative mesoscopic circuit coupled to a power source J. R. Choi, Journal of the Physical Society of Japan 79(4), 044402(1-6) (2010).
[11]  Zero-point fluctuations of quantized electromagnetic fields in time-varying linear media J. R. Choi, Dukhyeon Kim, Nadir Chaabi, Mustapha Maamache, and Salah Menouar, Journal of the Korean Physical Society 56(3), 775-781 (2010).
[12]  Geometric phase of quantized electromagnetic field in time-dependent linear media M. Maamache, N. Chaabi, and J. R. Choi, Europhysics Letters 89(4), 40009(1-6) (2010).
[13]  Invariant operator theory for the single-photon energy in time-varying media J. R. Choi, Chinese Physics B 19(1), 010306(1-5) (2010).
[14]  Do the generalized Fock-state wave functions have some relations with classical initial condition? J. R. Choi, K. H. Yeon, I. H. Nahm, and S. S. Kim, Pramana-Journal of Physics 73(5), 821-828 (2009).
[15]  Time-dependent Wigner distribution function employed in squeezed Schrodinger cat states: |Psi(t)> = N-1/2(|beta> + e^{i phi}|-beta>) J. R. Choi and K. H. Yeon, International Journal of Modern Physics B 23(25), 5049-5066 (2009).
[16]  Quantum systems connected by a time-dependent canonical transformation K. H. Yeon, J. R. Choi, and S. Zhang, Communications in Theoretical Physics 52(3), 416-420 (2009).
[17]  Dynamics of SU(1, 1) coherent states for the time-dependent quadratic Hamiltonian system J. R. Choi, Optics Communications 282(18), 3720-3728 (2009).
[18]  Dynamics of SU(1, 1) coherent states for the damped harmonic oscillator J. R. Choi and K. H. Yeon, Physical Review A 79(5), 054103(1-4) (2009).
[19]  Exact quantum solutions for time-dependent charged oscillator J. R. Choi, K. H. Yeon, M. Maamache, and S. Menouar, Journal of the Physical Society of Japan 78(5), 054001(1-7) (2009).
[20]  Time-dependent Wigner distribution function employed in coherent Schrodinger cat states: |Psi(t)> = N-1/2(|alpha> + e^{i phi}|-alpha>) J. R. Choi and K. H. Yeon, Physica Scripta 78(4), 045001(1-9) (2008).
[21]  SU(1, 1) coherent states for the generalized two-mode time-dependent quadratic Hamiltonian system J. R. Choi and K. H. Yeon, International Journal of Theoretical Physics 47(7), 1891-1910 (2008).
[22]  Exact wavefunctions for a time-dependent Coulomb potential S. Menouar, M Maamache, Y. Sadi and J. R. Choi, Journal of Physics A: Mathematical and Theoretical 41(21), 215303(1-11) (2008).
[23]  Coherent states of the inverted Caldirola-Kanai oscillator with time-dependent singularities J. R. Choi and K. H. Yeon, Annals of Physics 323(4), 812-826 (2008).
[24]  Commutation relations and self-consistency in electrodynamics for the fields in time-varying media J. R. Choi and J. Y. Oh, International Journal of Modern Physics B 22(3), 267-280 (2008).
[25]  Propagator for the time-dependent charged oscillator via linear and quadratic invariants M. S. Abdalla and J. R. Choi, Annals of Physics 322(12), 2795-2810 (2007).
[26]  Comparison of corrected wave functions associated to two different approaches for the time-dependent Hamiltonian systems involving (1/x)p + p(1/x) term J. R. Choi and J. Y. Oh, International Journal of Theoretical Physics 46(10), 2591-2598 (2007).
[27]  Thermal state for the capacitance coupled mesoscopic circuit with a power source J. R. Choi and J. Y. Oh, International Journal of Theoretical Physics 46(7), 1836-1852 (2007).
[28]  Quantum analysis for the evolution of the cosmological constant via unitary transformation J. R. Choi, International Journal of Modern Physics D 16(7), 1119-1132 (2007).
[29]  Quantum states with continuous spectrum for the time-dependent harmonic oscillator with a singular perturbation J. R. Choi and J. Y. Oh, Modern Physics Letters B 21(10), 585-593 (2007).
[30]  Uncertainty relation in the Barut-Girardello coherent state for the time- dependent singular oscillator J. R. Choi, Modern Physics Letters B 21(1), 45-50 (2007).
[31]  SU(1, 1) Lie algebra applied to the general time-dependent quadratic Hamiltonian system J. R. Choi and I. H. Nahm, International Journal of Theoretical Physics 46(1), 1-15 (2007).
[32]  Canonical transformation approach to the classical solution of RLC coupled two-dimensional circuit with an arbitrary power source J. R. Choi and I. H. Nahm, Modern Physics Letters B 20(30), 1963-1972 (2006).
[33]  Exact solution of a quantized LC circuit coupled to a power source J. R. Choi, Physica Scripta 73(6), 587-595 (2006).
[34]  Uncertainty relation for the time-dependent singular oscillator J. R. Choi and I. H. Nahm, International Journal of Modern Physics B 20(10), 1211-1231 (2006).
[35]  Coherent and squeezed states of light in linear media with time-dependent parameters by Lewis-Riesenfeld invariant operator method J. R. Choi, Journal of Physics B: Atomic, Molecular and Optical Physics 39(3), 669-684 (2006).
[36]  Interference in phase space of squeezed states for the time-dependent Hamiltonian system J. R. Choi, International Journal of Theoretical Physics 45(1), 176-196 (2006).
[37]  Quantum states with continuous spectrum for a general time-dependent oscillator J. R. Choi, Pramana-Journal of Physics 65(2), 165-176 (2005).
[38]  Quantum properties of light in linear media with time-dependent parameters by Lewis-Riesenfeld invariant operator method J. R. Choi and K. H. Yeon, International Journal of Modern Physics B 19(14), 2213-2224 (2005).
[39]  Wigner distribution function for the time-dependent quadratic-Hamiltonian quantum system using the Lewis-Riesenfeld invariant operator J. R. Choi, International Journal of Theoretical Physics 44(3), 327-348 (2005).
[40]  Investigation of the coherent wave packet for a time-dependent damped harmonic oscillator J. R. Choi and S. S. Choi, Journal of Applied Mathematics ＆ Computing 17(1, 2, 3), 495-508 (2005).
[41]  Quantum evolution of the cosmological constant after reheating J. R. Choi, C. I. Um, and S. P. Kim, Journal of the Korean Physical Society 45(6), 1679-1682 (2004).
[42]  Squeezed states for the general time-dependent harmonic oscillator with and without a singularity J. R. Choi and D. W. Kim, Journal of the Korean Physical Society 45(6), 1426-1434 (2004).
[43]  Coherent, squeezed, and thermal state of harmonic oscillator with exponentially decreasing frequency J. R. Choi, Philippine Journal of Science 133(2), 145-160 (2004).
[44]  Exact quantum state for the time-dependent repulsive oscillator with a driving force and with a singular perturbation J. R. Choi, Physica Scripta 70(5), 271-275 (2004).
[45]  SU(1, 1) Lie algebra applied to the time-dependent quadratic Hamiltonian system perturbed by a singularity J. R. Choi and S. S. Choi, International Journal of Modern Physics B 18(26), 3429-3441 (2004).
[46]  Coherent and squeezed states for light in homogeneous conducting linear media by an invariant operator method J. R. Choi, International Journal of Theoretical Physics 43(10), 2113-2136 (2004).
[47]  Unitary transformation of the time-dependent Hamiltonian system for the linear, the V-shape, and the triangular well potentials into the quadratic Hamiltonian system J. R. Choi, Journal of Applied Sciences 4(4), 636-643, (2004).
[48]  The dependency on the squeezing parameter for the uncertainty relation in the squeezed states of the time-dependent oscillator J. R. Choi, International Journal of Modern Physics B 18(16), 2307-2324 (2004).
[49]  Gaussian Klauder coherent states of general time-dependent harmonic oscillator J. R. Choi, Physics Letters A 325(1), 1-8 (2004).
[50]  WKB wave function of the general time-dependent quadratic Hamiltonian system J. R. Choi, International Journal of Theoretical Physics 43(4), 947-958 (2004).
[51]  Wave functions with discrete and with continuous spectrum for quantum damped harmonic oscillator perturbed by a singularity J. R. Choi, International Journal of Modern Physics B 18(7), 1007-1020 (2004).
[52]  Exact normalized solution of the Schrodinger equation for a particle in a triangular well J. R. Choi, International Mathematical Journal 5(3), 295-305 (2004).
[53]  Thermal states for a time-dependent oscillator with a singular term J. R. Choi, Journal of the Korean Physical Society 44(2), 223-229 (2004).
[54]  Dissipative blackbody radiation: Radiation in a lossy cavity J. R. Choi, International Journal of Modern Physics B 18(3), 317-324 (2004).
[55]  Invariant operator method applied to quantum sound wave in a cylindrical conduit J. R. Choi, International Mathematical Journal 5(1), 85-98 (2004).
[56]  Coherent states of general time-dependent harmonic oscillator J. R. Choi, Pramana-Journal of Physics 62(1), 13-29 (2004).
[57]  Approach to the quantum evolution for underdamped, critically damped, and overdamped driven harmonic oscillators using unitary transformation J. R. Choi, Reports on Mathematical Physics 52(3), 321-329 (2003).
[58]  Unitary transformation approach for the phase of the damped driven harmonic oscillator J. R. Choi, Modern Physics Letters B 17(26), 1365-1376 (2003).
[59]  Exact quantum state and relation between Berry's phase and Hannay's angle for general time-dependent harmonic oscillator perturbed by a singularity J. R. Choi, International Mathematical Journal 4(3), 209-227 (2003).
[60]  Quantum description of the electromagnetic waves in homogeneous conducting linear media J. R. Choi, Journal of Optics B: Quantum and Semiclassical Optics 5(5), 409-413 (2003).
[61]  Operator method for the number, coherent, and squeezed states of time-dependent Hamiltonian system J. R. Choi and J. Y. Oh, International Mathematical Journal 3(9), 939-952 (2003).
[62]  Thermal state of a harmonic oscillator with a linearly decreasing mass J. R. Choi and J. H. Gweon, Journal of the Korean Physical Society 43(1), 17-23 (2003).
[63]  Thermal state of general time-dependent harmonic oscillator with a singular perturbation J. R. Choi, Physica Scripta 68(1), 36-40 (2003).
[64]  Thermal state of the general time-dependent harmonic oscillator J. R. Choi, Pramana-Journal of Physics 61(1), 7-20 (2003).
[65]  The decay properties of a single-photon in linear media J. R. Choi, Chinese Journal of Physics 41(3), 257-266 (2003).
[66]  Coherent states of nonconservative harmonic oscillator with a singular perturbation J. R. Choi, International Journal of Modern Physics B 17(12), 2429-2437 (2003).
[67]  Exact wave functions of time-dependent Hamiltonian systems involving quadratic, inverse quadratic, and (1/x)p+p(1/x) terms J. R. Choi, International Journal of Theoretical Physics 42(4), 853-861 (2003).
[68]  Quantum and classical correspondence for a lossy transmission line J. R. Choi and J. H. Gweon, Journal of the Korean Physical Society 42(3), 349-353 (2003).
[69]  Propagator and geometric phase of a general time-dependent harmonic oscillator J. H. Gweon and J. R. Choi, Journal of the Korean Physical Society 42(3), 325-330 (2003).
[70]  Exact quantum theory of noninteracting electrons with time-dependent effective mass in a time-dependent magnetic field J. R. Choi, Journal of Physics: Condensed Matter 15(6), 823-832 (2003).
[71]  Operator method for a nonconservative harmonic oscillator with and without singular perturbation J. R. Choi and B. H. Gweon, International Journal of Modern Physics B 16(31), 4733-4742 (2002).
[72]  Path integral and dynamical invariant methods applied to a power-law suppressed quadratic Hamiltonian system C. I. Um, J. R. Choi, K. H. Yeon and T. F. George, International Journal of Theoretical Physics, Group Theory and Nonlinear Optics 9(3), 197-214(2002).
[73]  Exact quantum theory of a lengthening pendulum C. I. Um, J. R. Choi, K. H. Yeon, S. Zhang and T. F. George, Journal of the Korean Physical Society 41(5), 649-654 (2002).
[74]  Quantum and classical correspondence of damped-amplified oscillators J. R. Choi and S. Zhang, Physica Scripta 66(5), 337-341 (2002).
[75]  Quantization of underdamped, critically damped, and overdamped electric circuits with a power source J. R. Choi, International Journal of Theoretical Physics 41(10), 1931-1939 (2002).
[76]  Quantum state of pendulum under exponentially increasing gravitation J. R. Choi, Physica A 310(1), 109-120 (2002).
[77]  Exact quantum theory of the harmonic oscillator with the classical solution in the form of Mathieu functions C. I. Um, J. R. Choi, K. H. Yeon and T. F. George, Journal of the Korean Physical Society 40(6), 969-973 (2002).
[78]  Quantum and thermal state for exponentially damped harmonic oscillator with and without inverse quadratic potential J. R. Choi, International Journal of Modern Physics B 16(9), 1341-1351 (2002).
[79]  Thermodynamics of the standard quantum harmonic oscillator of time-dependent frequency with and without inverse quadratic potential J. R. Choi and S. Zhang, Journal of Physics A: Mathematical and General 35(12), 2845-2855 (2002).
[80]  Quantum squeezing effect of mesoscopic capacitance-inductance-resistance coupled circuit S. Zhang, J. R. Choi, C. I. Um and K. H. Yeon, Physics Letters A 294(6), 319-326 (2002).
[81]  Quantum uncertainties of a mesoscopic inductance-resistance coupled circuit S. Zhang, J. R. Choi, C. I. Um and K. H. Yeon, Journal of the Korean Physical Society 40(2), 325-329 (2002).
[82]  Quantum uncertainties of mesoscopic capacitance coupled circuit S. Zhang, J. R. Choi, C. I. Um and K. H. Yeon, Physics Letters A 289(5), 257-263 (2001).
[83]  Exact quantum theory of a pendulum with a linearly decreasing mass C. I. Um, J. R. Choi and K. H. Yeon, Journal of the Korean Physical Society 38(5), 452-455 (2001).
[84]  Exact quantum theory of the damped harmonic oscillator with a linear damping constant C. I. Um, J. R. Choi and K. H. Yeon, Journal of the Korean Physical Society 38(5), 447-451 (2001).

Publications: Books/Book Chapters

[1]  Book Chapter: Nonclassical properties of superpositions of coherent and squeezed states for electromagnetic fields in time-varying media, in Quantum Optics and Laser Experiments (Editor: Sergiy Lyagushyn), to be published.
[2]  Book(Editor): Dark Energy-Current Advances and Ideas (review book, Research SignPost, Kerala, India, 2009, total page: 220)..