Juan David Vasquez Jaramillo, Ph.D
--B.Sc Electronics Engineering (Universidad Tecnologica de Perira - UTP),
--M.Sc. Electrical Engineering (Universidad Tecnologica de Pereira - UTP),
--Research Intership: Department of Electrical Engineering, Technion - Israel Institute of Technology
--Lic. Phil. (M.Res) Physics (Uppsala Universitet),
--Ph.D in Atomic, Molecular and Condensed Matter Physics (Uppsala Universitet),
--Postdoctoral Scholar: Quantum Transport and Electronic Structure Theory Unit,
Okinawa Institute for Science and Technology (OIST).
--Postdoctoral Scholar - Theoretical Solid State Physics Group, Universidad del Valle.
--Lecturer in Theoretical Physics at the institute of Physics, Universidad de Antioquia.
--Lecturer in Dynamical Systems and Control Theory, Faculty of Engineering, Universidad Tecnologica de Pereira.
--Senior Lecturer In Theoretical Physics, at the Department of Physics and Geology, Universidad de Pamplona.
--Lecturer in Applied Mathematics and Electromagnetic Theory, Universidad Tecnologica de Pereira.
--Postdoctoral Researcher at the Instituto de Fisica Interdisciplinar y de Sistemas Complejos (IFISC - Palma de Mallorca)
--Senior Lecturer, Faculty of Natural Sciences, Universidad Nacional de Colombia.
Research Unit on:
Theory of Quantum Matter and Statistical Complexity (TQM)
Research Orientations and Emphasis
The research unit on Theory of Quantum Matter and Statistical Complexity, belongs to the Research Group in Quantum Field Theory (Universidad de Pamplona), and is primarily interested in the following scientific directions:
1. Emergent Phenomena in Quantum Matter in the Finite Temperature Regime.
2. Non-Equilibrium Quantum Dynamics and Quantum Thermodynamics.
3. Superconductor and Ultra Cold Atom Based Josephson Probes.
4. Quantum Transport in Nanostructures With Topological Constraints.
5. Statistical Mechanics of Complexity and Mesoscopic Physics.
6. Correlation Between Structure and Function in Chemical Systems.
7. Intersection Between Cosmology, Particle Physics and Condensed Matter.
In case of interest in our research lines, you will find useful the following online content we have published:
1. Short Course on the Quantum Theory of Solids.
2. Course on Nonequilibrium Quantum Transport
3. Course on the Broken Symmetry in the Heisenberg Hamiltonian and
Finite Temperature Observables.
4. Green's Functions in Classical Electrodynamics.
5. Selected Lectures in Statistical Mechanics.
6. Selected Lectures in Quantum Mechanics.
7. Selected Lectures in the Theory of Quantum Matter.
Research Orientations and Emphasis
New: Insights on Magnetic Excitation of Spin Tunnel Junctions and its Effect in two and Three Spin Half Qubits.
In previous work we have made some claims, that I am convinced were rather incomplete. In this new work, our team, proposes two different schemes for driving magnetically a molecular junction in order to achieve signatures from the spin structure in quantum transport evaluations, hence completing and making more robust claims with respect of what was reported in previous publications, giving complete clarity on whether under non-equilibrium conditions there is a finite and measurable spin magnetic moments in paramagnetic molecular junctions.
1. Correlation Between Molecular Structure and Function Within The Quantum Transport Problem, with special attention to Structures Exhibiting Quantum Coherence, Decoherence, Electron Vibration Coupling and Spin States.
2. Nonequilibrium Modulation of the Molecular Spin Structure. Embeeding a molecular magnet into a Metallic Junction Enables the modulation of the Spin Structure of the Magnet. For Instance, For a Spin 1 Molecule, one can Modulate the Single Ion Anisotropy By Applying a Voltage Bias at a Given Temperature Gradient Across the Junction. The Molecular Vibration Notoriously Inhibits This Modulation.
See: ACS Omega (American Chemical Society)
See: in Arxiv 1910.10089 Aharonov-Bohm Effect in
Voltage Dependent Molecular Spin Dimer Switch
3. Effect of Nuclear Vibrations on the Molecular Spin Structure and Quantum Coherent Phenomena and How this Modulates Nonequilibrium Quantum Transport and Quantum Thermodynamics (Heat Flow and Work Done on the Molecule).
See: ACS Omega (American Chemical Society)
Now, We Are Particularly Interested in Demostrating the Effect of Nuclear Vibrations on Quantum Interference With and in the Absence of Spin Molecular Structure for Simple Systems.
4. Quantum Thermodynamics: Conversion of Heat into Electricity at the Nanoscale.
Here we deal with one of the main concerns in nanoscale energy conversion technologies, which is, what is the most efficient way of converting heat into usefull electricity.
We consider molecular junctions with spin structure, with electron-electron interactions and with electron-vibration interactions, which may serve as molecular thermal machines and nano-refrigerators, and we try to understand the principles behind the efficiency of these nanoscale machinery.
5. Quantum Thermodynamics: Conversion of Heat into Spin Work
See: ACS (American Chemical Society) 2018, 3, 6, 6546-6553
See: in Arxiv 1910.10089 Aharonov-Bohm Effect in
Voltage Dependent Molecular Spin Dimer Switch