Duke Quantum Center Achieves Breakthrough in Quantum Entanglement Research
Researchers at the Duke Quantum Center have successfully demonstrated log-law scaling of subsystem entanglement entropies at criticality using a digital quantum computer. This achievement was made possible through the use of a fully-connected trapped-ion quantum computer, which combines the multiscale entanglement renormalization ansatz (MERA) with a holographic scheme for subsystem tomography. This methodological approach allows for the accurate representation of infinite systems and long-range correlations with a limited number of qubits. The research team, led by Thomas Barthel and colleagues, observed a quantum phase transition with spontaneous symmetry breaking, highlighting the potential of MERA for investigating strongly-correlated many-body systems. 
