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Complex density wave orders and quantum phase transitions in a model of square-lattice Rydberg atom arrays
Rhine Samajdar, Wen Wei Ho, Hannes Pichler +2
We describe the zero-temperature phase diagram of a model of a two-dimensional square-lattice array of neutral atoms, excited into Rydberg states and interacting via strong van der…
Quantum many-body scars from virtual entangled pairs
Sambuddha Chattopadhyay, Hannes Pichler, Mikhail D. Lukin +1
We study weak ergodicity breaking in a one-dimensional, nonintegrable spin-1 XY model. We construct for it an exact, highly excited eigenstate, which despite its large energy densi…
Parallel implementation of high-fidelity multi-qubit gates with neutral atoms
Harry Levine, Alexander Keesling, Giulia Semeghini +8
We report the implementation of universal two- and three-qubit entangling gates on neutral atom qubits encoded in long-lived hyperfine ground states. The gates are mediated by exci…
One-way quantum repeater based on near-deterministic photon-emitter interfaces
Johannes Borregaard, Hannes Pichler, Tim Schöder +3
We propose a novel one-way quantum repeater architecture based on photonic tree-cluster states. Encoding a qubit in a photonic tree-cluster protects the information from transmissi…
Emerging 2D Gauge theories in Rydberg configurable arrays
A. Celi, B. Vermersch, O. Viyuela +3
Solving strongly coupled gauge theories in two or three spatial dimensions is of fundamental importance in several areas of physics ranging from high-energy physics to condensed ma…
Generation and manipulation of Schrödinger cat states in Rydberg atom arrays
Ahmed Omran, Harry Levine, Alexander Keesling +16
Quantum entanglement involving coherent superpositions of macroscopically distinct states is among the most striking features of quantum theory, but its realization is challenging,…