Gupta, Rivu ; Roy, Saptarshi ; Mal, Shiladitya ; De, Aditi Sen (2021) Emergence of Monogamy under Static and Dynamic Scenarios Physical Review A . ISSN 0031-899X (print); 1536-6065 (web)
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Official URL: https://arxiv.org/abs/2102.04940
Abstract
Characterizing multipartite quantum correlations beyond two parties is of utmost importance for building cutting edge quantum technologies, although the comprehensive picture is still missing. Here we investigate quantum correlations (QCs) present in a multipartite system by exploring connections between monogamy score (MS), localizable quantum correlations (LQC), and genuine multipartite entanglement (GME) content of the state. We find that the frequency distribution of GME for Dicke states with higher excitations resembles that of random states. We show that there is a critical value of GME beyond which all states become monogamous and it is investigated by considering different powers of MS which provide various layers of monogamy relations. Interestingly, such a relation between LQC and MS as well as GME does not hold. States having a very low GME (low monogamy score, both positive and negative) can localize a high amount of QCs in two parties. We also provide an upper bound to the sum of bipartite QC measures including LQC for random states and establish a gap between the actual upper bound and the algebraic maximum.
Item Type: | Article |
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Keywords: | Quantum Physics (quant-ph), FOS: Physical sciences, FOS: Physical sciences |
ID Code: | 125683 |
Deposited On: | 12 Oct 2022 08:26 |
Last Modified: | 12 Oct 2022 08:26 |
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