Measurement-Altered Ising Criticality in Rydberg Arrays

Weakly measuring a quantum critical system can dramatically alter both its long-distance correlations and entanglement structure. In this talk, I will present a roadmap towards experimentally realizing such measurement-altered quantum criticality in Rydberg atom arrays tuned to an Ising phase transition. We specifically envision a protocol wherein a critical two-chain array is adiabatically prepared into its ground state, and then one chain is projectively measured. Notably, this scheme eschews the need for unitary entangling gates commonly utilized for implementing weak measurements. We employ symmetry arguments bolstered by numerical simulations to study the resulting post-measurement wavefunction. The influence of experimental imperfections will also be discussed.