77 citations · 255 across the 21 of their papers we have counts for
5 papers · 2 filters
Algorithm for Computing Excited States in Quantum Theory
X. Q. Luo, H. Jirari, H. Kroger +1
Monte Carlo techniques have been widely employed in statistical physics as well as in quantum theory in the Lagrangian formulation. However, in the conventional approach, it is ext…
From Quantum Action to Quantum Chaos
H. Jirari, H. Kröger, G. Melkonyan +2
We have recently suggested a quantum action, which has the form of a classical action and takes into account quantum effects via renormalized action parameters. Here we apply it to…
Quantum Chaos at Finite Temperature - a New Approach via the Quantum Action
L. A. Caron, H. Jirari, H. Kröger +3
We address the problem of quantum chaos: Is there a rigorous, physically meaningful definition of chaos in quantum physics? Can the tools of classical chaos theory, like Lyapunov e…
Quantum Chaos at Finite Temperature
L. A. Caron, H. Jirari, H. Kröger +3
We use the quantum action to study quantum chaos at finite temperature. We present a numerical study of a classically chaotic 2-D Hamiltonian system - harmonic oscillators with anh…
Renormalisation in Quantum Mechanics, Quantum Instantons and Quantum Chaos
H. Jirari, H. Kröger, X. Q. Luo +1
We suggest how to construct non-perturbatively a renormalized action in quantum mechanics. We discuss similarties and differences with the standard effective action. We propose tha…