Quantum in Practice Act This bill includes quantum modeling and simulation within the definition of quantum information science for purposes of various federal research and development initiatives, programs, and activities. Quantum information science refers to the use of the laws of quantum physics to store, transmit, manipulate, compute, or measure information, and quantum modeling and simulation refers to the use of quantum computing hardware to determine the properties of quantum systems (e.g., the properties of materials such as high-temperature superconductors and modeling nuclear and particle physics).