My research interests are mainly in the study of the dynamics of electrons and phonons in nanosystems where time-varying forces are present. At the moment, using nonequilibrium Green’s functions, I am investigating the general properties of the relaxation and response times of the electronic current in a transistor-like molecular junction where a time-varying gate potential is acting on the channel. My research team is also working on the effects of electron-phonon and electron-photon interactions, as well as heat baths whose temperatures change with time, to the transport properties of the electronic current. I am also interested in the question of the existence of quantum chaos and whether the quantum analog of classically chaotic systems would also exhibit chaotic dynamics. In addition, my team is also investigating the effects of specific lattice structures, i.e., mostly two-dimensional materials, to the quantum dynamics of electrons and phonons.

**Publications**

- E.C. Cuansing, “Attenuation and amplification of the transient current in nanojunctions with time-varying gate potentials”, International Journal of Modern Physics B 31, 1750105 (2017).
- E.C. Cuansing, H. Li, and J.-S. Wang, “Role of the on-site pinning potential in establishing quasi-steady-state conditions of heat transport in finite quantum systems”, Physical Review E 86, 031132 (2012).

- E.C. Cuansing and G. Liang, “Time-dependent quantum transport and power-law decay of the transient current in a nano-relay and nano-oscillator”, Journal of Applied Physics 110, 083704 (2011).

- E.C. Cuansing and J.-S. Wang, “Tunable heat pump by modulating the coupling to the leads”, Physical Review E 82, 021116 (2010).

- E.C. Cuansing and J.-S. Wang, “Transient behavior of heat transport in a quantum thermal switch”, Physical Review B 81, 052302 (2010).
- E. Cuansing and J.-S. Wang, “Quantum transport in honeycomb lattice ribbons with armchair and zigzag edges coupled to semi-infinite linear chain leads”, European Physical Journal B 69, 505 (2009).

- E. Cuansing and H. Nakanishi, “Quantum transport in randomly diluted quantum percolation clusters in two dimensions”, Physica A 387, 806 (2008).

- Y.Y. Goldschmidt and E. Cuansing, “Melting of the nanocrystalline vortex matter in highly anisotropic high- temperature superconductors”, Physical Review Letters 95, 177004 (2005).

- E. Cuansing and H. Nakanishi, “Quantum interference effects in particle transport through square lattices”, Physical Review E 70, 066142 (2004).

- E. Cuansing and H. Nakanishi, “Structure and diffusion time scales of disordered clusters”, Physica A 322, 1 (2003).

- E. Cuansing and H. Nakanishi, “Iterated fully coordinated percolation on a square lattice”, Journal of Statistical Physics 105, 659 (2001).

- E. Cuansing, J.H. Kim, and H. Nakanishi, “Geometry of fully coordinated two-dimensional percolation”, Physical Review E 60, 3670 (1999).

- J.A. Magpantay and E. Cuansing, “Is the Coulomb Gauge always realizable?”, Modern Physics Letters A 11, 87 (1996).

**Conference Proceedings**

- E.C. Cuansing, F.A. Bayocboc, and C.M. Laurio, “Dynamics of electron currents in nanojunctions with time-varying components and interactions”, AIP Conference Proceedings 1871, 030003 (2017).

**Invited and Contributed Talks (International)**

- “Dynamics of charge currents in nanojunctions with time-varying components”, with F. Bayocboc and C. Laurio, 19th International Conference on Recent Progress in Many-Body Theories, Asia-Pacific Center for Theoretical Physics, Pohang, South Korea (June 2017).

- “Dynamics of electric currents in nanojunctions with time-varying components and interactions”, with F. Bayocboc and C. Laurio, 8th Jagna International Workshop: Structure, Function and Dynamics from nm to Gm, Research Center for Theoretical Physics, Jagna, Bohol, Philippines (January 2017).

- “Transient dynamics of charge transport in a nanoswitch and a nanojunction with a time-varying gate potential”, Annual Meeting of the Physical Society of the Republic of China, National Sun Yat-Sen University, Kaohsiung, Taiwan (January 2016).

- “Heat transport in systems with a time-varying thermal switch”, with J.-S. Wang, Conference on the Transmission of Information and Energy in Nonlinear Complex Systems, National University of Singapore, Singapore (July 2010).

- “Quantum transport in honeycomb lattice ribbons with armchair and zigzag edges coupled to semi-infinite linear chain leads”, with J.-S. Wang, March Meeting of the Institute of Physics Singapore, Nanyang Technological University, Singapore (March 2009).

- “Quantum interference effects in transport through lattices in two dimensions”, with H. Nakanishi, Condensed Matter Physics Seminar, Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania, U.S.A. (May 2004).

- “Quantum interference effects in transport through lattices in two dimensions”, with H. Nakanishi, 91st Statistical Mechanics Conference, Rutgers University, Piscataway, New Jersey, U.S.A. (May 2004).

- “Revisiting conductance in two-dimensional quantum percolation”, with H. Nakanishi, 89th Statistical Mechanics Conference, Rutgers University, Piscataway, New Jersey, U.S.A. (May 2003).

- “Structure and diffusion time scales of disordered clusters”, with H. Nakanishi, March Meeting of the American Physical Society, Indianapolis, Indiana, U.S.A. (March 2002).

- “Structure and diffusion time scales of disordered clusters”, with H. Nakanishi, 21st IUPAP Conference in Statistical Physics, Cancun, Mexico (July 2001).

- “On the role of computing in the study of critical phenomena, percolation theory, and various related extensions”, Computational Science and Engineering Seminar, Purdue University, West Lafayette, Indiana, U.S.A. (April 2001).

- “Static and dynamic critical behaviors of iterated fully coordinated percolation”, with H. Nakanishi, March Meeting of the American Physical Society, Minneapolis, Minnesota, U.S.A. (March 2000).

- “Static and dynamic critical behaviors of fully coordinated percolation”, with H. Nakanishi, Centennial Meeting of the American Physical Society, Atlanta, Georgia, U.S.A. (March 1999). Invited and Contributed Talks (Local):

- “Transient dynamics of current in nanojunctions with time-varying gate potentials”, 2nd Workshop on Theories in Quantum Phenomena and Condensed Matter Physics, University of the Philippines, Los Baños, Laguna, 2016.

- “Transport in a nanotransistor with a time-varying gate potential”, 8th UPLB CAS Student-Faculty Research Conference, University of the Philippines, Los Baños, Laguna, 2015.

- “Electron transport in a nanoscale junction with time-varying couplings to the heat baths and time-dependent electron-phonon interactions”, with F. Bayocboc, 8th UPLB CAS Student-Faculty Research Conference, University of the Philippines, Los Baños, Laguna, 2015.

- “Time-dependent quantum transport in a nanodevice: A nonequilibrium Green’s functions approach”, Workshop on theories in quantum phenomena and condensed matter physics, University of the Philippines, Los Baños, Laguna, 2015.

- “Transient dynamics of non-interacting electrons in the channel of a nanotransistor with a time-varying gate potential”, Sub-Plenary Talk, 32nd Samahang Pisika ng Pilipinas Physics Congress, University of the Philippines, Diliman, Quezon City, 2014.

- “Phonon transport across a two-dimensional region with time-varying spring constants”, with L. Palma, 32nd Samahang Pisika ng Pilipinas Physics Congress, University of the Philippines, Diliman, Quezon City 2014.

- “Incorporating electron-photon interactions in the transport of electrons in a linear chain subjected to a time- dependent light source”, with C. Laurio, 32nd Samahang Pisika ng Pilipinas Physics Congress, University of the Philippines, Diliman, Quezon City, 2014.

- “Guided inquiry on collisions and torque”, with J. Cuansing, Philippine Association of Physics Instructors Workshop, De La Salle University, Manila, 2014.

- “Quantum transport and nonequilibrium Green’s functions: Borrowing techniques from high energy physics”, The First CERN Philippines School, University of the Philippines, Diliman, Quezon City, 2014.

- “Time-dependent electron current in a nano-transistor subjected to a time-varying gate potential”, 31st Samahang Pisika ng Pilipinas Physics Congress, University of San Carlos, Cebu, 2013.

- “Time-dependent electronic transport properties of nano-devices with dynamic components”, with G.A. Liang and J.- S. Wang, 30th Samahang Pisika ng Pilipinas Physics Congress, De La Salle Health Sciences Institute, Dasmariñas City, Cavite, 2012. Poster Presentations:

- “Resonance, propagating and evanescent waves, and transmission gaps in quantum transport along finite honeycomb ribbons”, AsiaNano 2008, Biopolis, Singapore (October 2008).

- “Quantum interference effects in disordered quantum percolation clusters in two dimensions”, Advanced School on Quantum Monte Carlo Methods in Physics and Chemistry, International Centre for Theoretical Physics, Trieste, Italy (January 2008).

Last Updated on Friday, 20 October 2017 05:16