47 citations · 47 across the 1 of their papers we have counts for
2 papers
gr-qc2011★ 47 cited
Classical and Quantum Correlations of Scalar Field in the Inflationary Universe
Yasusada Nambu, Yuji Ohsumi
We investigate classical and quantum correlations of a quantum field in the inflationary universe using a particle detector model. By considering the entanglement and correlations…
gr-qc2009
Entanglement of Coarse Grained Quantum Field in the Expanding Universe
Yasusada Nambu, Yuji Ohsumi
We investigate the entanglement of a quantum field in the expanding universe. By introducing a bipartite system using a coarse-grained scalar field, we apply the separability crite…