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112 papers · 1 filter
Dissipative realization of a quantum distance-based classifier using open quantum walks
Pedro Linck, Graeme Pleasance, Francesco Petruccione +1
Open quantum walks (OQWs) constitute a class of quantum walks whose dynamics are entirely driven by interactions with the environment. It is well known that OQWs provide a general…
Tunneling in double-well potentials within Nelson's stochastic mechanics: Application to ammonia inversion
Danilo F. Schafaschek, Giovani L. Vasconcelos, Antônio M. S. Macêdo
Nelson's stochastic mechanics formulates quantum dynamics as a real-time conservative diffusion process in which a particle undergoes Brownian-like motion with a fluctuation amplit…
Realizing the Petz Recovery Map on an NMR Quantum Processor
Gayatri Singh, Ram Sagar Sahani, Vinayak Jagadish +3
The Petz recovery map is a central construct in quantum information theory, providing an explicit, channel-aware prescription for reversing the effects of noise. Unlike standard qu…
Spatial correlations in four-wave mixing with structured light
Mateus R. L. da Motta, Sandra S. Vianna
We present a detailed theoretical treatment of four-wave mixing (FWM) in a quantized paraxial framework, capturing the multi-spatial-mode nature of the biphoton state generated in…
Dynamics and computation in linear open quantum walks
Pedro Linck, Nadja K. Bernardes
Open Quantum Walks (OQW) are a type of quantum walk governed by the system's interaction with its environment. We explore the time evolution and the limit behavior of the OQW frame…
Local models and Bell inequalities for the minimal triangle network
José Mário da Silva, Alejandro Pozas-Kerstjens, Fernando Parisio
Nonlocal correlations created in networks with multiple independent sources enable surprising phenomena in quantum information and quantum foundations. The presence of independent…