activity
20112026
most citedGeneralized Nonequilibrium Quantum Transport of Spin and Pseudospins: Entanglements and Topological Phases

5 citations · 11 across the 15 of their papers we have counts for

collaborators

15 papers

cond-mat.supr-con2026

On pseudogap phase as precursor to a superconducting dome in high-Tc cuprates: Non-analytic T* as a function of doping

Felix A. Buot

We generalize the condition under which a quantum material exhibiting a pseudogap phase is a precursor to a superconducting (SC) dome. The result reveals the non-analytic T* as a f…

cond-mat.supr-con2024

Entanglement and confinement: A new pairing mechanism in high-T_{C} cuprates

Felix A. Buot, Roland E. S. Otadoy, Unofre Pili

We demonstrate that entanglement and confinement hole pairing (ECHP) is a precise physics of the entanglement framework of the RVB theory of high-Tc cuprates. Our novel strong ECHP…

quant-ph2023

An inverter-chain link implementation of quantum teleportation and superdense coding

Felix A. Buot, Roland E. S. Otadoy, Xavier L. Bacalla

A new perspective in terms of inverter-chain link (ICL) diagrams of quantum entanglement faithfully captures the fundamental concept of quantum teleportation and superdense coding.…

quant-ph2023

On Entanglement Measures: Discrete Phase Space and Inverter-Chain Link Viewpoint

Felix A. Buot

In contrast to abstract statistical analyses in the literature, we present a concrete physical diagrammatic model of entanglement characterization and measure with its underlying d…

quant-ph2022

Dynamics of Functional Phase Space Distribution in QFT: A Third Quantization and Dynamical Unification of QFT and CMP

Felix A. Buot

We proposed a third quantization scheme to derive the quantum dynamics of the functional phase space distribution in quantum field theory (QFT). The derivation is straightforward a…

quant-ph2022

Unification of Mixed Hilbert-Space Representations in Condensed Matter Physics and Quantum Field Theory

Felix A. Buot, Gibson T. Maglasang, Allan Roy B. Elnar

We present a unification of mixed-space quantum representations in Condensed Matter Physics (CMP) and Quantum Field Theory (QFT). The unifying formalism is based on being able to e…

cond-mat.mes-hall2021

A Mechanical Implementation and Diagrammatic Calculation of Entangled Basis States

F. A. Buot, A. R. Elnar, G. Maglasang +1

We give for the first time a diagrammatic calculational tool of quantum entanglement. We present a pedagogical and simple mechanical implementation of quantum entanglement or "spoo…

cond-mat.mes-hall2021

On quantum Hall effect: Covariant derivatives, Wilson lines, gauge potentials, lattice Weyl transforms, and Chern numbers

Felix A. Buot

We show that the gauge symmetry of the nonequilibrium quantum transport of Chern insulator in a uniform electric field is governed by the Wilson line of parallel transport operator…

quant-ph2021

Comments on the Weyl-Wigner calculus for lattice models

Felix A. Buot

Here, we clarify the physical aspects between the discrete Weyl-Wigner (W-W) formalism, well developed in condensed matter physics, and the so-called 'precise Weyl-Wigner calculus…

cond-mat.mes-hall2020

On quantum Hall effect, Kosterlitz-Thouless phase transition, Dirac magnetic monopole, and Bohr-Sommerfeld quantization

Felix A. Buot, Allan Roy Elnar, Gibson Maglasang +1

We addressed quantization phenomena in transport and vortex/precession-motion of low-dimensional systems, stationary quantization of confined motion in phase space due to oscillato…

cond-mat.mes-hall2020★ 4 cited

Nonequilibrium superfield and lattice Weyl transform transport approach to quantum Hall effect

Felix A. Buot

We derive the topological Chern number of the integer quantum Hall effect in electrical conductivity, using Buot's superfield and lattice Weyl transform nonequilibrium quantum tran…

cond-mat.mes-hall2018★ 5 cited

Generalized Nonequilibrium Quantum Transport of Spin and Pseudospins: Entanglements and Topological Phases

Felix A. Buot, Karla B. Rivero, Roland E. S. Otadoy

General nonequilibrium quantum transport equations are derived for a coupled system of charge carriers, Dirac spin, isospin (or valley spin), and pseudospin, such as either one of…

cond-mat.mes-hall2016★ 1 cited

Magnetic Susceptibility of Dirac Fermions, Bi-Sb Alloys, Interacting Bloch Fermions, Dilute Nonmagnetic Alloys, and Kondo Alloys

Felix A. Buot, Roland E. S. Otadoy, Karla B. Rivero

Wide ranging interest in Dirac Hamiltomian is due to the emergence of novel materials, namely, graphene, topological insulators and superconductors, the newly-discovered Weyl semim…

cond-mat.other2012

Nonequilibrium Multi-Band Spin Quantum Transport Equations: Spin, Pseudo-Spin, and Total Charge Coupling

Felix A. Buot

Using the superfield nonequilibrium Greens function technique, we derive the spatio-temporal spin magnetization quantum transport equations (SMQTEs) for a two-band model of semicon…

quant-ph2011★ 1 cited

Nonequilibrium Spin Magnetization Quantum Transport Equations: Spin and Charge Coupling

F. A. Buot, R. A. Loberternos, R. E. S. Otadoy +1

The classical Bloch equations of spin magnetization transport is extended to fully time-dependent and highly-nonlinear nonequilibrium spin magnetization quantum distribution functi…