# Quantum Simulators

@article{Buluta2009QuantumS, title={Quantum Simulators}, author={Iulia Maria Buluta and Franco Nori}, journal={Science}, year={2009}, volume={326}, pages={108 - 111} }

Ultimate Simulator Many body problems are difficult to model analytically and are often so complex that they cannot be simulated accurately on a classical computer. Because quantum systems can be inherently correlated, it has been proposed that such systems could be used to simulate other complex problems. Buluta and Nori (p. 108) review the progress being made toward realizing quantum simulators, describing some of the implementations and potential applications of using such controlled quantum…

## 460 Citations

### Digital quantum simulation of the statistical mechanics of a frustrated magnet.

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A 'digital' quantum simulation of thermal states is reported; a three-spin frustrated magnet was simulated using a nuclear magnetic resonance quantum information processor, and the phase diagram of the system is explored at any simulated temperature and external field.

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This work addresses the limit that quantum simulators can beat classical computers and proposes physical setups that can be used to reproduce the quantum dynamics of a standard and multiple-mode Holstein model.

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Quantum simulators are controllable quantum systems that can be used to mimic other quantum systems and are thus being able to tackle problems that are intractable on conventional computers. Today’s…

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A quantum simulator is a device engineered to reproduce the properties of an ideal quantum model. It allows the study of quantum systems that cannot be efficiently simulated on classical computers.…

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A comprehensive outlook is given on the state of art capabilities offered from these near-term noisy devices as universal quantum simulators, i.e. programmable quantum computers potentially able to digitally simulate the time evolution of many physical models.

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This work combines multi-qubit gates with optical pumping to implement coherent operations and dissipative processes and illustrates the ability to engineer the open-system dynamics through the dissipative preparation of entangled states, the simulation of coherent many-body spin interactions, and the quantum non-demolition measurement of multi- qubit observables.

### Simulating chemistry using quantum computers.

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This review discusses to what extent the ideas in quantum computation, now a well-established field, have been applied to chemical problems and describes algorithms that achieve significant advantages for the electronic-structure problem, the simulation of chemical dynamics, protein folding, and other tasks.