Keldysh formalism for multiple parallel worlds
Keldysh formalism for multiple parallel worlds
复制标题
多个平行世界的凯尔迪什形式主义
DOI:
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发表时间:
2015
期刊:
影响因子:
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通讯作者:
Y. Nazarov
中科院分区:
文献类型:
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作者:
M. Ansari;Y. Nazarov
We present a compact and self-contained review of the recently developed Keldysh formalism for multiple parallel worlds. The formalism has been applied to consistent quantum evaluation of the flows of informational quantities, in particular, to the evaluation of Renyi and Shannon entropy flows. We start with the formulation of the standard and extended Keldysh techniques in a single world in a form convenient for our presentation. We explain the use of Keldysh contours encompassing multiple parallel worlds. In the end, we briefly summarize the concrete results obtained with the method.