279 citations · 2.5k across the 99 of their papers we have counts for
11 papers · 1 filter
Escape from the Quantum Pigeon Conundrum
Gabor Kunstatter, Jonathan Ziprick, Victoria McNab +3
It has recently been argued in Aharonov et. al. (2016) that quantum mechanics violates the Pigeon Counting Principle (PCP) which states that if one distributes three pigeons among…
Geometric measures of entanglement and the Schmidt decomposition
M. E. Carrington, R. Kobes, G. Kunstatter +2
In the standard geometric approach, the entanglement of a pure state is , where is the angle between the entangled state and the closest separable state of products of…
Geometric measures of entanglement and the Schmidt decomposition
D. Ostapchuk, G. Passante, R. Kobes +1
In the standard geometric approach to a measure of entanglement of a pure state, is used, where is the angle between the state to the closest separable state of produ…
Decoherence of a Single Qubit from Quantum Anomaly
W. F. Chen, R. Kobes, G. Kunstatter
We show via an explicit example that quantum anomalies can lead to decoherence of a single quantum qubit through phase relaxation. The anomaly causes the Hamiltonian to develop a n…
The Dynamics of Entanglement in the Adiabatic Search and Deutsch Algorithms
K. Choy, G. Passante, D. Ahrensmeier +4
The goal of this paper is to study the effect of entanglement on the running time of a quantum computation. Adiabatic quantum computation is suited to this kind of study, since it…
A new adiabatic quantum search algorithm
H. Zaraket, V. Bagnulo, J. Kettner +2
We present a new adiabatic quantum algorithm for searching over structured databases. The new algorithm is optimized using a simplified complexity analysis.
Rapid Data Search using Adiabatic Quantum Computation
Daria Ahrensmeier, Saurya Das, Randy Kobes +2
We show that by a suitable choice of time-dependent Hamiltonian, the search for a marked item in an unstructured database can be achieved in unit time, using Adiabatic Quantum Comp…
Structured Adiabatic Quantum Search
Daria Ahrensmeier, Saurya Das, Randy Kobes +2
We examine the use of adiabatic quantum algorithms to solve structured, or nested, search problems. We construct suitable time dependent Hamiltonians and derive the computation tim…
Energy and Efficiency of Adiabatic Quantum Search Algorithms
Saurya Das, Randy Kobes, Gabor Kunstatter
We present the results of a detailed analysis of a general, unstructured adiabatic quantum search of a data base of items. In particular we examine the effects on the computati…
Adiabatic Quantum Computation and Deutsch's Algorithm
Saurya Das, Randy Kobes, Gabor Kunstatter
We show that by a suitable choice of a time dependent Hamiltonian, Deutsch's algorithm can be implemented by an adiabatic quantum computer. We extend our analysis to the Deutsch-Jo…
The Effective Action for a Relativistic Jaynes-Cummings Model
Mark Burgess, Margaret Carrington, Gabor Kunstatter
We describe an effective field theory for atomic lasers which reduces to the Jaynes-Cummings model in the non-relativistic, single mode limit. Our action describes a multi-mode sys…