145 citations · 185 across the 6 of their papers we have counts for
7 papers
Optical Fourier Architecture for Universal Nonlinear Functions
Martin F. X. Mauser, Joshua Morris, Sara Galatro +2
We introduce an exact algebraic architecture that evaluates an arbitrary finite Fourier series using a two-mode () linear optical circuit, with the only tunable compone…
A proof of Ryser's circulant Hadamard conjecture
Joshua Morris
We show that an circulant Hadamard matrix must satisfy a family of congruence equations that have solutions only when , proving Ryser's 1963 conjecture that n…
Spinsim: a GPU optimized python package for simulating spin-half and spin-one quantum systems
Alex Tritt, Joshua Morris, Joel Hochstetter +3
The Spinsim python package simulates spin-half and spin-one quantum mechanical systems following a time dependent Shroedinger equation. It makes use of numba.cuda, which is an LLVM…
Quantum verification and estimation with few copies
Joshua Morris, Valeria Saggio, Aleksandra Gočanin +1
As quantum technologies advance, the ability to generate increasingly large quantum states has experienced rapid development. In this context, the verification and estimation of la…
Experimental quantum memristor
Michele Spagnolo, Joshua Morris, Simone Piacentini +6
Quantum computer technology harnesses the features of quantum physics for revolutionizing information processing and computing. As such, quantum computers use physical quantum gate…
Selective Quantum State Tomography
Joshua Morris, Borivoje Dakić
We introduce the concept of selective quantum state tomography or SQST, a tomographic scheme that enables a user to estimate arbitrary elements of an unknown quantum state using a…
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…