Abstract: Quantum computers bring in extraordinary capabilities at solving certain problems by taking classically inaccessible paths. A practical quantum computer will need a large number of qubits w...
Abstract: What can we do on a small quantum computer with O(10) qubits? We propose a variational scheme to study ground state properties of quantum many-body systems on small scale near-term noisy q...
Abstract: Quantum discord is a new kind of quantum correlation different from entanglement, proposed in 2001, by H. Ollivier and H. Zurek (Physics Review Letters vol. 88, 017901) and, independently, ...
Abstract: Hybrid quantum logic and a test of Bell's inequality using two di_erent atomic species: Entanglement is one of the most fundamental properties of quantum mechanics, and is the key resource ...
Abstract: Using a circuit QED device, we demonstrate a simple qubit measurement pulse shape that yields fast ring-up and ring-down of the readout resonator regardless of the qubit state. The pulse di...
Abstract: We study the entanglement spectrum of highly excited eigenstates of two known models that exhibit a many-body localization transition, namely the one-dimensional random-field Heisenberg mod...