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Clock Quantum Monte Carlo: an imaginary-time method for real-time quantum dynamics
Jarrod R. McClean, Alán Aspuru-Guzik
In quantum information theory, there is an explicit mapping between general unitary dynamics and Hermitian ground state eigenvalue problems known as the Feynman-Kitaev Clock. A pro…
Chemical Basis of Trotter-Suzuki Errors in Quantum Chemistry Simulation
Ryan Babbush, Jarrod McClean, Dave Wecker +2
Although the simulation of quantum chemistry is one of the most anticipated applications of quantum computing, the scaling of known upper bounds on the complexity of these algorith…
Quantum nonlinear optics with polar J-aggregates in microcavities
Felipe Herrera, Borja Peropadre, Leonardo A. Pachon +2
We show that an ensemble of organic dye molecules with permanent electric dipole moments embedded in a microcavity can lead to strong optical nonlinearities at the single photon le…
Linear-algebraic bath transformation for simulating complex open quantum systems
Joonsuk Huh, Sarah Mostame, Takatoshi Fujita +2
In studying open quantum systems, the environment is often approximated as a collection of non-interacting harmonic oscillators, a configuration also known as the star-bath model.…
Practical Witness for Electronic Coherences
Allan S. Johnson, Joel Yuen-Zhou, Alán Aspuru-Guzik +1
The origin of the coherences in two-dimensional spectroscopy of photosynthetic complexes remains disputed. Recently it has been shown that in the ultrashort-pulse limit, oscillatio…
Exploiting locality in quantum computation for quantum chemistry
Jarrod R. McClean, Ryan Babbush, Peter J. Love +1
Accurate prediction of chemical and material properties from first principles quantum chemistry is a challenging task on traditional computers. Recent developments in quantum compu…