522 citations · 3.4k across the 56 of their papers we have counts for
7 papers · 2 filters
Non-Markovian Memory Strength Bounds Quantum Process Recoverability
Philip Taranto, Felix A. Pollock, Kavan Modi
Generic non-Markovian quantum processes have infinitely long memory, implying an exact description that grows exponentially in complexity with observation time. Here, we present a…
Resource theories of multi-time processes: A window into quantum non-Markovianity
Graeme D. Berk, Andrew J. P. Garner, Benjamin Yadin +2
We investigate the conditions under which an uncontrollable background processes may be harnessed by an agent to perform a task that would otherwise be impossible within their oper…
An algorithm for solving unconstrained unitary quantum brachistochrone problems
Francesco Campaioli, William Sloan, Kavan Modi +1
We introduce an iterative method to search for time-optimal Hamiltonians that drive a quantum system between two arbitrary, and in general mixed, quantum states. The method is base…
Equilibration on average in quantum processes with finite temporal resolution
Pedro Figueroa-Romero, Kavan Modi, Felix A. Pollock
We characterize the conditions under which a multi-time quantum process with a finite temporal resolution can be approximately described by an equilibrium one. By providing a gener…
Non-Markovian memory in IBMQX4
Joshua Morris, Felix A. Pollock, Kavan Modi
We measure and quantify non-Markovian effects in IBM's Quantum Experience. Specifically, we analyze the temporal correlations in a sequence of gates by characterizing the performan…
Exploiting the causal tensor network structure of quantum processes to efficiently simulate non-Markovian path integrals
Mathias R. Jørgensen, Felix A. Pollock
In the path integral formulation of the evolution of an open quantum system coupled to a Gaussian, non-interacting environment, the dynamical contribution of the latter is encoded…
Completely Positive Divisibility Does Not Mean Markovianity
Simon Milz, M. S. Kim, Felix A. Pollock +1
In the classical domain, it is well-known that divisibility does not imply that a stochastic process is Markovian. However, for quantum processes, divisibility is often considered…