11 papers
Postselection-free ballistic-diffusive transition in monitored spin chains
K. G. S. H. Gunawardana, Ali G. Moghaddam, Teemu Ojanen
We study spin and entanglement dynamics in spin-1/2 XXZ chains under periodic monitoring and show that this system exhibits two measurement-induced phase transitions: a steady-stat…
Experimental high-dimensional multi-qubit Bell non-locality on a superconducting quantum processor
Yousef Mafi, Ali G. Moghaddam, Teemu Ojanen
Combining recent advances in superconducting quantum hardware, we explore quantum correlations in a previously inaccessible regime by observing \emph{simultaneously} high-dimension…
General many-body entanglement swapping protocol: opportunities for distributed quantum computing
Santeri Huhtanen, Yousef Mafi, Ali G. Moghaddam +1
Sharing entangled pairs between non-signaling parties via entanglement swapping constitutes a striking demonstration of the nonlocality of quantum mechanics and a crucial building…
Entanglement-limited linear response in fermionic systems
Hadi Cheraghi, Ali G. Moghaddam, Teemu Ojanen
We propose a general connection between entanglement-entropy scaling laws and the linear response functions of particle-conserving fermionic systems in their ground state. Specific…
Transfer learning of many-body electronic correlation entropy from local measurements
Faluke Aikebaier, Teemu Ojanen, Jose L. Lado
The characterization of quantum correlations in many-body systems is instrumental to understanding the nature of emergent phenomena in quantum materials. The correlation entropy se…
Entanglement entropy scaling laws from fluctuations of non-conserved quantities
Szczepan GÅodzik, Kim Pöyhönen, Ali G. Moghaddam +1
Entanglement patterns reveal essential information on many-body states and provide a way to classify quantum phases of matter. However, experimental studies of many-body entangleme…