Journal
PHYSICAL REVIEW LETTERS
Volume 114, Issue 7, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.114.071601
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Funding
- Science and Technology Facilities Council (STFC)
- Institute for Particle Physics Phenomenology
- King's College, Cambridge
- STFC
- Emmanuel College, Cambridge
- Science and Technology Facilities Council [ST/J000434/1, ST/L000385/1, ST/K001728/1, 1208316] Funding Source: researchfish
- STFC [ST/K001728/1, ST/L000385/1, ST/J000434/1] Funding Source: UKRI
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The quantum theory of fields is largely based on studying perturbations around noninteracting, or free, field theories, which correspond to a collection of quantum-mechanical harmonic oscillators. The quantum theory of an ordinary fluid is freer, in the sense that the noninteracting theory also contains an infinite collection of quantum-mechanical free particles, corresponding to vortex modes. By computing a variety of correlation functions at tree and loop level, we give evidence that a quantum perfect fluid can be consistently formulated as a low-energy, effective field theory. We speculate that the quantum behavior is radically different from both classical fluids and quantum fields.
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