In understanding strongly correlated quantum systems, quantifying the non-Gaussian nature of interparticle correlations is invaluable. We show that, for a uniform quantum gas, there exists a natural connection between non-Gaussian correlations and the generation of momentum-space entanglement. Furthermore, this entanglement can be directly measured in an experiment using time-of-flight techniques. To create a prototype of our method, we numerically study entanglement generation in a degenerate Bose gas following a quench to the unitary regime, where Gaussian and non-Gaussian correlations are generated sequentially in time.

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• Bose gases
• Entanglement entropy
• Non-gaussian quantum states
• Quantum correlations in quantum information
• Quantum entanglement
• Quantum quench
• Ultracold gases
• Many-body techniques