Sarang Gopalakrishnan

Sep 20, 2024 | link.aps.org | Yifan Zhang |Sarang Gopalakrishnan

Local measurements cannot create entanglement, but they can convert short-range entanglement to long-range entanglement, as in quantum teleportation. This phenomenon of measurement-induced entanglement (MIE) has been widely discussed in recent work on measurement-induced entanglement phase transitions and related phenomena. Here, we situate MIE in a broader context of the growth of long-range conditional mutual information (CMI) under decoherence.

Jan 25, 2024 | link.aps.org | Staten Island |Sarang Gopalakrishnan |Dror Orgad |Vadim Oganesyan

We explore the effects of spatial locality on the dynamics of random quantum systems subject to a Markovian noise. To this end, we study a model in which the system Hamiltonian and its couplings to the noise are random matrices whose entries decay as power laws of distance, with distinct exponents αH, αL.