29 citations · 71 across the 6 of their papers we have counts for
7 papers
The effect of the processing and measurement operators on the expressive power of quantum models
Aikaterini, Gratsea, Patrick Huembeli
There is an increasing interest in Quantum Machine Learning (QML) models, how they work and for which applications they could be useful. There have been many different proposals on…
Exploring Quantum Perceptron and Quantum Neural Network structures with a teacher-student scheme
Aikaterini, Gratsea, Patrick Huembeli
Near-term quantum devices can be used to build quantum machine learning models, such as quantum kernel methods and quantum neural networks (QNN) to perform classification tasks. Th…
Storage capacity and learning capability of quantum neural networks
Maciej Lewenstein, Aikaterini Gratsea, Andreu Riera-Campeny +3
We study the storage capacity of quantum neural networks (QNNs) described as completely positive trace preserving (CPTP) maps, which act on an -dimensional Hilbert space. We dem…
Universal and optimal coin sequences for high entanglement generation in 1D discrete time quantum walks
Aikaterini Gratsea, Friederike Metz, Thomas Busch
Entanglement is a key resource in many quantum information applications and achieving high values independently of the initial conditions is an important task. Here we address the…
Spatially-selective and quantum-statistics-limited light stimulus for retina biometrics and pupillometry
A. Margaritakis, G. Anyfantaki, K. Mouloudakis +2
Quantum vision is currently emerging as an interdisciplinary field synthesizing the physiology of human vision with modern quantum optics. We recently proposed a biometric scheme b…
Generation of hybrid maximally entangled states in a one-dimensional quantum walk
Aikaterini Gratsea, Maciej Lewenstein, Alexandre Dauphin
We study the generation of hybrid entanglement in a one-dimensional quantum walk. In particular, we explore the preparation of maximally entangled states between position and spin…
Photon-assisted quantum state transfer and entanglement generation in spin chains
A. Gratsea, G. M. Nikolopoulos, P. Lambropoulos
We propose a protocol for state transfer and entanglement generation between two distant spin qubits (sender and receiver) that have different energies. The two qubits are permanen…