earlier works on state and channel discrimination that aim to identify the optimal measurements to distinguish two states/channels, our work is focused on identifying the control scheme that optimally separates the two cases. Our model, as shown schematically in Fig.1, considers a single qubit (or...
The detectors we propose are based on the single Cooper pair box (SCB), a mesoscopic superconducting device that has been successfully developed at JPL for applications in quantum computing. This concept allows for frequency multiplexing of a large number of pixels using a single RF line, and ...
Thirty years after it was first proposed, quantum teleportation remains one of the most important protocols in quantum information and quantum technologies, enabling the nonlocal transmission of an unknown quantum state. Quantum teleportation can be
Quantum Detectors introduces the Quantum C100. Born from discussions in the Cryo-EM field, this detector is designed as the ideal detector for performance at 100keV. View Product V2F100 The V2F100 allows users to perform high-resolution voltage-to-frequency conversion, a technique widely used in...
The difficulty is related to the fact that quantum mechanics applies to microscopic systems containing one (or a few) electrons, protons, or photons. Measurements, however, are made with large-scale objects (e.g., detectors, amplifiers, and meters) in the macroscopic world, which obeys the la...
But detecting gravitational waves isn’t easy. By the time they reach Earth, the ripples have dissipated into near silence. Our detectors must sense motions on the scale of one ten-thousandth the width of a proton to stand a chance. And making them more sensitive is a huge challenge. Physi...
Notice that the existence of off-diagonal elements is base-dependent—therefore, to check for purity, it is a good idea to compute Tr(ρ2) instead. In quantum information theory, the density matrix can be used to determine the amount of information conveyed by the quantum state, i.e., ...
Rimkus DanielDepartment of RadiologyBaily Norman A.Department of RadiologyMedical PhysicsRimkus, D. k Bailey. N. A.Quantum Noise in Detectors. Medical Physics, 10, 470-471, 1983.Rimkus D A and Bailey N A 1983 Quantum noise in detectors Med. Phys. 10 470-1...
Recent work has indicated that reconstruction of a restricted POVM set in a finite range may be possible20, but further investigation on the probe state requirements and generalization to arbitrary detectors is needed. Furthermore, QSE with a well-calibrated detector using QDT requires an additional...
Solid-state quantum devices use quantum entanglement for various quantum technologies, such as quantum computation, encryption, communication and sensing. Solid-state platforms for quantum photonics include single molecules, individual defects in crystals and semiconductor quantum dots, which have enabled cohe...