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Quantum Memristors in Frequency-Entangled Optical Fields
(MDPI, 2020-02-14)
A quantum memristor is a passive resistive circuit element with memory, engineered in a given quantum platform. It can be represented by a quantum system coupled to a dissipative environment, in which a system–bath ...
Digital-Analog quantum simulations using the cross-resonance effect
(American Physical Society, 2021-05-27)
[EN] Digital-analog quantum computation aims to reduce the currently infeasible resource requirements
needed for near-term quantum information processing by replacing sequences of one- and two-qubit
gates with a unitary ...
Bi-Frequency Illumination: A Quantum-Enhanced Protocol
(Wiley, 2022)
Quantum-enhanced, idler-free sensing protocol to measure the response of a
target object to the frequency of a probe in a noisy and lossy scenario is
proposed. In this protocol, a target with frequency-dependent reflectivity ...
Enhanced Connectivity of Quantum Hardware with Digital-Analog Control
(American Physical Society, 2020-07-20)
Quantum computers based on superconducting circuits are experiencing rapid development, with the aim to outperform classical computers in certain useful tasks in the near future. However, the currently available chip ...
Superconducting circuit architecture for digital-analog quantum computing
(Springer, 2022)
[EN] We propose a superconducting circuit architecture suitable for digital-analog quantum computing (DAQC) based on an enhanced NISQ family of nearest-neighbor interactions. DAQC makes a smart use of digital steps (single ...
Propagating quantum microwaves: towards applications in communication and sensing
(IOP, 2023-04)
The field of propagating quantum microwaves is a relatively new area of research that is receiving increased attention due to its promising technological applications, both in communication and sensing. While formally ...
The Forbidden Quantum Adder
(Nature Publishing Group, 2015-07-08)
Quantum information provides fundamentally different computational resources than classical information. We prove that there is no unitary protocol able to add unknown quantum states belonging to different Hilbert spaces. ...
Biomimetic Cloning of Quantum Observables
(Nature Publishing Group, 2014-05-09)
We propose a bio-inspired sequential quantum protocol for the cloning and preservation of the statistics associated to quantum observables of a given system. It combines the cloning of a set of commuting observables, ...
Advanced-Retarded Differential Equations in Quantum Photonic Systems
(Nature Publishing Group, 2017-02-23)
We propose the realization of photonic circuits whose dynamics is governed by advanced-retarded differential equations. Beyond their mathematical interest, these photonic configurations enable the implementation of quantum ...
Quantum illumination reveals phase-shift inducing cloaking
(Nature Publishing, 2017-08-24)
In quantum illumination entangled light is employed to enhance the detection accuracy of an object when compared with the best classical protocol. On the other hand, cloaking is a stealth technology based on covering a ...