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Multipartite Entanglement Accumulation in Quantum States: Localizable Generalized Geometric Measure
Debasis Sadhukhan, Sudipto Singha Roy, Amit Kumar Pal +3
Multiparty quantum states are useful for a variety of quantum information and computation protocols. We define a multiparty entanglement measure based on local measurements on a mu…
Order-from-disorder and critical scalings of spontaneous magnetization in random-field quantum spin systems
Anindita Bera, Debraj Rakshit, Maciej Lewenstein +3
We investigate the effect of a unidirectional quenched random field on the anisotropic quantum spin-1/2 model, which magnetizes spontaneously in the absence of the random fiel…
Forbidden regimes in the distribution of bipartite quantum correlations due to multiparty entanglement
Asutosh Kumar, Himadri Shekhar Dhar, R. Prabhu +2
Monogamy is a nonclassical property that limits the distribution of quantum correlation among subparts of a multiparty system. We show that monogamy scores for different quantum co…
Enhancement of Quantum Correlation Length in Quenched Disordered Spin Chains
Debasis Sadhukhan, Sudipto Singha Roy, Debraj Rakshit +3
Classical correlations of ground states typically decay exponentially and polynomially, respectively for gapped and gapless short-ranged quantum spin systems. In such systems, enta…