Single measurement of a quantum many-body system of bosons
- Los Alamos National Laboratory, Los Alamos, New Mexico 87544 (United States)
Quantum mechanics provides us with probability densities-wave functions modulus squared. Such a probability density is experimentally recovered as an average over many repeated measurements performed on a system in a given wave function. Sometimes it is important to be able to theoretically predict not just the average but also a possible outcome of a single measurement. It is very difficult to make exact predictions of this kind in the case of many-body systems due to correlations in the corresponding many-body wave functions. Here I propose an approximate way of simulating the outcomes of a single-experiment density measurement that is performed on variety of states of N bosons. The approximation is accurate if occupation of single-particle modes is macroscopic.
- OSTI ID:
- 20786568
- Journal Information:
- Physical Review. A, Vol. 72, Issue 5; Other Information: DOI: 10.1103/PhysRevA.72.053622; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
- Country of Publication:
- United States
- Language:
- English
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