45 citations · 112 across the 11 of their papers we have counts for
11 papers
A Closed-Form Approach to Oscillatory Integrals in Level-Crossing Physics
Maseim B. Kenmoe, Anicet D. Kammogne
We present a closed-form, exact analytical solution, valid at finite times, to a class of multiple integrals with highly oscillatory kernels. Our approach leverages the intimate co…
Dirac Representation for Lattice Spin Operators: Spin- and Spin- cases
Maseim Bassis Kenmoe
We introduce a quantum representation of lattice spin operators (LSOs) by mapping quantum spins to their classical analogues for spin values and . The resulting Dirac…
Transmission of a single electron through a Berry's ring
Maseim B. Kenmoe, Yosuke Kayanuma
A theoretical model of transmission and reflection of an electron with spin is proposed for a mesoscopic ring with rotating localized magnetic moment. This model may be realized in…
A fast iterative algorithm for near-diagonal eigenvalue problems
Maseim Kenmoe, Ronald Kriemann, Matteo Smerlak +1
We introduce a novel eigenvalue algorithm for near-diagonal matrices inspired by Rayleigh-Schrödinger perturbation theory and termed Iterative Perturbative Theory (IPT). Contrary t…
Dynamical perturbation theory for eigenvalue problems
Maseim Kenmoe, Matteo Smerlak, Anton Zadorin
Many problems in physics, chemistry and other fields are perturbative in nature, i.e. differ only slightly from related problems with known solutions. Prominent among these is the…
Landau-Zener transitions in a qubit periodically driven in both longitudinal and transverse directions
A. B. Tchapda, M. B. Kenmoe, A. D. Kammogne +1
We theoretically investigate the dynamics of a spin-qubit periodically driven in both longitudinal and transverse directions by two classical fields respectively a radio-frequency…
SU(3) Landau-Zener interferometry with a transverse periodic drive
M. B. Kenmoe, A. B. Tchapda, L. C. Fai
Quantum triangles can work as interferometers. Depending on their geometric size and interactions between paths, "beats" {\it and/or} "steps" patterns are observed. We show that wh…
Periodically Driven Three-Level Systems
M. B. Kenmoe, L. C. Fai
We study the dynamics of a three-level system (ThLS) sinusoidally driven in both longitudinal and transverse directions and in the presence of a uniaxial anisotropy entering th…
Demkov-Kunike Models with Decay
M. B. Kenmoe, A. B. Tchapda, L. C. Fai
Exact analytical solutions to the dissipative time-dependent Schrödinger equation are obtained for a decaying two-state system with decay rates and for levels with…
SU(3) Landau - Zener Interferometry
M. N. Kiselev, K. Kikoin, M. B. Kenmoe
We consider a general theory of Landau-Zener transitions in a three-level system. Based on a classification of three level crossings we express the Landau - Zener Hamiltonians in t…
Effects of colored noise on Landau-Zener Transitions: Two and Three-Level Systems
M. B. Kenmoe, H. N. Phien, M. N. Kiselev +1
We investigate the Landau-Zener transition in two- and three- level systems subject to a classical Gaussian noise. Two complementary limits of the noise being fast and slow compare…