54 citations · 75 across the 8 of their papers we have counts for
8 papers
Storage, Scrambling, and Loss of Information in Quantum Reservoir Computing
Nathan Keenan, Roberta Zambrini
The performance of a quantum reservoir computer in temporal processing tasks depends on how its driven quantum substrate retains information about past inputs, distributes it acros…
-VQE: Excited-state preparation of quantum many-body scars with shallow circuits
Eoin Carolan, Nathan Keenan, Gabriele Cenedese +1
We present and benchmark a type of variational quantum eigensolver (VQE), which we denote -VQE. It is designed to target mid-spectrum eigenstates and prepare quantum many-body s…
A Random Matrix Theory of Pauli Tomography
Nathan Keenan, John Goold, Alex Nico-Katz
Quantum state tomography (QST), the process of reconstructing some unknown quantum state from repeated measurements on copies of said state, is a foundationally important t…
Realization of Two-dimensional Discrete Time Crystals with Anisotropic Heisenberg Coupling
Eric D. Switzer, Niall Robertson, Nathan Keenan +7
A discrete time crystal (DTC) is the paradigmatic example of a phase of matter that occurs exclusively in systems out of equilibrium. This phenomenon is characterized by the sponta…
Dynamical simulations of many-body quantum chaos on a quantum computer
Laurin E. Fischer, Matea Leahy, Andrew Eddins +16
Quantum circuits with local unitaries have emerged as a rich playground for the exploration of many-body quantum dynamics of discrete-time systems. While the intrinsic locality mak…
Tensor Network enhanced Dynamic Multiproduct Formulas
Niall F. Robertson, Bibek Pokharel, Bryce Fuller +10
Tensor networks and quantum computation are two of the most powerful tools for the simulation of quantum many-body systems. Rather than viewing them as competing approaches, here w…
Can Quantum Computers Do Nothing?
Alexander Nico-Katz, Nathan Keenan, John Goold
Quantum computing platforms are subject to contradictory engineering requirements: qubits must be protected from mutual interactions when idling ('doing nothing'), and strongly int…
Evidence of Kardar-Parisi-Zhang scaling on a digital quantum simulator
Nathan Keenan, Niall Robertson, Tara Murphy +2
Understanding how hydrodynamic behaviour emerges from the unitary evolution of the many-particle Schrödinger equation is a central goal of non-equilibrium statistical mechanics. In…