95 citations · 350 across the 31 of their papers we have counts for
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Remarks on Replica Method and Sachdev-Ye-Kitaev Model
Ming Chen, Yao-Zhong Zhang
Through tracing back to EA/SK models, we disentangle the construction logic of SYK model. During the construction, we recall the technical essence of replica method. Then we point…
Bell inequalities violation within non-Bunch-Davies states
Jun Feng, Xiaoyang Huang, Yao-Zhong Zhang +1
We study the quantum nature of non-Bunch-Davies states in de Sitter space by evaluating CHSH inequality on a localized two-atom system. We show that quantum nonlocality can be gene…
Quantum estimation in an expanding spacetime
Xiaoyang Huang, Jun Feng, Yao-Zhong Zhang +1
We investigate the quantum estimation on the Hubble parameter of an expanding de Sitter space by quantum metrological techniques. By exploring the dynamics of a freely falling Unru…
One loop amplitude from null string
Ming Yu, Chi Zhang, Yao-Zhong Zhang
We generalize the CHY formalism to one-loop level, based on the framework of the null string theory. The null string, a tensionless string theory, produces the same results as the…
Uncertainty relation in Schwarzschild spacetime
Jun Feng, Yao-Zhong Zhang, Mark D. Gould +1
We explore the entropic uncertainty relation in the curved background outside a Schwarzschild black hole, and find that Hawking radiation introduces a nontrivial modification on th…
Determinant representations of scalar products for the open XXZ chain with non-diagonal boundary terms
Wen-Li Yang, Xi Chen, Jun Feng +4
With the help of the F-basis provided by the Drinfeld twist or factorizing F-matrix for the open XXZ spin chain with non-diagonal boundary terms, we obtain the determinant represen…