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58 papers · 2 filters
Efficient quantum computation of molecular forces and other energy gradients
Thomas E. O'Brien, Michael Streif, Nicholas C. Rubin +12
While most work on the quantum simulation of chemistry has focused on computing energy surfaces, a similarly important application requiring subtly different algorithms is the comp…
Telecom-band Hyperentangled Photon Pairs from a Fiber-based Source
Changjia Chen, Calvin Xu, Arash Riazi +6
Hyperentanglement, the simultaneous and independent entanglement of quantum particles in multiple degrees of freedom, is a powerful resource that can be harnessed for efficient qua…
Measurement-induced entanglement phase transitions in variational quantum circuits
Roeland Wiersema, Cunlu Zhou, Juan Felipe Carrasquilla +1
Variational quantum algorithms (VQAs), which classically optimize a parametrized quantum circuit to solve a computational task, promise to advance our understanding of quantum many…
Capturing non-Markovian dynamics with the reaction coordinate method
Nicholas Anto-Sztrikacs, Dvira Segal
The reaction coordinate (RC) technique is emerging as a significant tool in the study of quantum dissipative dynamics and quantum thermodynamics. With the objective to further esta…
Negative quasiprobabilities enhance phase estimation in quantum-optics experiment
Noah B. Lupu-Gladstein, Batuhan Y. Yilmaz, David R. M. Arvidsson-Shukur +4
Operator noncommutation, a hallmark of quantum theory, limits measurement precision, according to uncertainty principles. Wielded correctly, though, noncommutation can boost precis…
Two strategies for modeling nonlinear optics in lossy integrated photonic structures
Milica Banic, Luca Zatti, Marco Liscidini +1
We present two complementary strategies for modeling nonlinear quantum optics in realistic integrated optical devices, where scattering loss is present. In the first strategy, we m…