Quantum computers have the potential to transform chemical research by tackling complex quantum chemistry problems that classical high-performance computers struggle to solve. Experts Klaus Liegener, Oliver Morsch, and Guido Pupillo discuss the challenges of classical computing and the promise of quantum computers in modeling quantum properties, simulating crucial quantum effects, and predicting the behavior of complex molecules. With the ability to analyze medium-sized strongly correlated systems more efficiently than classical computers, quantum computers could soon significantly impact pharmaceutical development and materials science.
The article highlights the potential of quantum computers to revolutionize chemical research, specifically in solving quantum chemistry problems. Klaus Liegener, Oliver Morsch, and Guido Pupillo, experts in the field, discuss the challenges and opportunities in using quantum computers for modeling quantum properties.
Classical high-performance computers struggle to accurately model quantum effects on large systems of hundreds or thousands of molecules with strong electronic correlations or coupled vibrational and electronic correlations. This limitation is due to the exponential scaling of computational complexity with system size, making it difficult to achieve the required accuracy for complex chemical systems.
Quantum computers, on the other hand, have the potential to overcome these challenges. A small quantum computer with around 100 error-protected qubits can calculate the energy of around 100 spin orbitals, each specifying the probability of an electron’s position and spin. This capability would be useful for numerous applications, including searching for new molecules with specific properties.
Many chemical companies are on a quest to improve the efficiency of modeling molecules, replacing trial-and-error approaches with direct modeling that has sufficient accuracy to resolve all relevant processes. One top priority in computational chemistry is to develop methods that can accurately model quantum effects on large systems, allowing for the prediction of system behavior.
Quantum computers have the potential to significantly improve the efficiency of chemical research by enabling the simulation of complex chemical reactions and the discovery of new molecules with specific properties. This could lead to breakthroughs in fields such as pharmaceutical development, where the cost of developing a new drug is estimated to be around $24 billion.
While quantum computers are still in their early stages, researchers are making progress in developing practical applications for chemical research. For example, a small quantum computer with around 100 error-protected qubits can calculate the energy of around 100 spin orbitals, each specifying the probability of an electron’s position and spin.
As quantum computers continue to evolve, they may enable the simulation of complex chemical reactions and the discovery of new molecules with specific properties. This could lead to breakthroughs in fields such as pharmaceutical development, where the cost of developing a new drug is estimated to be around $24 billion.
The potential of quantum computers to revolutionize chemical research is significant. By enabling the simulation of complex chemical reactions and the discovery of new molecules with specific properties, quantum computers could lead to breakthroughs in fields such as pharmaceutical development. While there are still challenges to overcome, researchers are making progress in developing practical applications for chemical research.
Publication details: “Solving quantum chemistry problems on quantum computers”
Publication Date: 2024-09-01
Authors: Klaus Liegener, O. Morsch and Guido Pupillo
Source: Physics Today
DOI: https://doi.org/10.1063/pt.qoys.tiuw
