The More You Know: Quantum Simulator

A Quantum Simulator is a controllable quantum mechanical system than can be used to study more complex quantum system that cannot be directly studied nor simulated by any classical computer.

One of the most important consequences of the existence of entanglement in quantum mechanics is related to the quantity of information necessary to describe the state of a quantum system. In a classical system, the number of parameters needed to characterize its state is equal to the sum of the degrees of freedom of each of its components. However, for a quantum system, the number of parameters needed to describe its state grows exponentially with the number of constituents. And this makes the task of simulating a quantum system a very difficult one even for systems with few constituents, the computational resources needed for the simulation quickly become unreachable using computational techniques based on classical computers.

In 1982 Nobel laureate Richard Feynman conjectured that these limitations could be overcome using computers based on quantum systems. Based on this conjecture, physicists started exploiting the potential of quantum mechanics to develop new quantum computers (universal quantum simulators) capable of simulating quantum systems.

Nowadays there are several quantum systems than can be used as hardware for quantum simulators: trapped ions, cold atoms in optical lattices, liquid and solid-state NMR, photons, quantum dots, superconducting circuits, and NV centres. [1]

Go to the Dictionary of Quantum Information and Quantum Computation.

 All text copyright © Marco Vinicio Sebastian Cerezo de la Roca.

Creative Commons License
The More You Know: Quantum Simulator by Marco Vinicio Sebastian Cerezo de la Roca is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

[1] “What is a quantum simulator?” T. Johnson, S. Clark, D. Jaksch.

About marcocerezo

My name is Marco Cerezo, I have a degree in physics from the Universidad Nacional de la Plata (UNLP) in Buenos Aires, Argentina, and I'm a Ph.D student. Although I study in Argentina, I was born and raised in Guatemala, so I consider myself "chapín" at heart. From an early age I discovered how exciting, interesting and fun physics can be, so I decided to devote myself to study this passionate field. This blog is dedicated to all those who want to dig a little into the mysteries and beauty of physics. And in particular, to all those who are interested in studying Quantum Computation and Quantum Information. ---------------------------------------------------------------------------------------------------------- Mi nombre es Marco Cerezo, Licenciado en Física egresado de la Universidad Nacional de la Plata (UNLP) en Buenos Aires, Argentina. Actualmente estoy haciendo mi Doctorado en física. Aunque estudio en Argentina, nací y crecí en Guatemala por lo que me considero chapín de corazón. Desde muy temprana edad descubrí lo apasionante, interesante y divertida que es la física por lo que decidí dedicarme a su estudio. Este blog es está dedicado a todos aquellos que quieren indagar un poco en los misterios y la belleza de la física; y en particular, a aquellos que quieran aprender sobre Computación e Información Cuántica.
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