Quantum walks have been shown to a wide range of applications, from artificial intelligence, photosynthesis, and quantum transport. stochastic (QSWs) generalize this concept additional non-unitary evolution. In paper, we propose trajectory-based simulation protocol effectively implement family discrete-time QSWs in device. After deriving the for 2-vertex graph with single edge, show how our gen...

Quantum computers have been proved to be able to mimic quantum systems efficiently in polynomial time. Quantum chemistry problems, such as static molecular energy calculations and dynamical chemical reaction simulations, become very intractable on classical computers with scaling up of the system. Therefore, quantum simulation is a feasible and effective approach to tackle quantum chemistry pro...

Quantum theory of computation establishes that there are problems for which quantum algorithms are far more efficient than their classical counterpart. Advances in quantum computing have initiated the design of systems based on quantum logic gates. Quantum computer hardware being primarily available in research laboratories at present, it mandates the ability to design, develop and test quantum...

This review article summarizes the requirement of low temperature conditions in existing experimental approaches to quantum computation and simulation.

In a recent letter, Georgeot and Shepelyansky [1] claim to have shown that there is a big advantage in using a quantum computer to simulate and study classical chaotic systems, over using a conventional (classical) computer. (Actually, the authors made this claim already in the second part of an earlier letter [2].) Most of the paper [1] is devoted to showing that the quantum simulation is much...

Quantum simulation can beat current classical computers with minimally a few tens of qubits. Here we report an experimental demonstration that a small nuclear-magnetic-resonance quantum simulator is already able to simulate the dynamics of a prototype laser-driven isomerization reaction using engineered quantum control pulses. The experimental results agree well with classical simulations. We c...

Device modeling of novel semiconductor devices requires adapted physical models which include quantum mechanical effects. The quantum hydrodynamic as well as the quantum drift diffusion model offers effective possibilities for the simulation of nanoscale devices, particularly if tunneling processes appear. The models can be implemented effectively in conventional device simulation systems.