Browne MT, Ward JFL. 1982. Detectors for STEM, and the measurement of their detective quantum efficiency. Ultra- microscopy 7:249-262.Browne, M. T., and Ward, J. F. L. (1982) Detectors for STEM and the measurement of their detective quantum efficiency. Ultramicroscopy 7 , 249–262....
that of measurement-based quantum computation, where the processing of quantum information takes place by rounds of simple measurements on qubits prepared in a highly entangled state. We review recent developments in measurement-based quantum computation with a view to both fundamental and practical ...
This is achieved by comparing the experimental uncertainty in phase estimation with an independent measurement of the related quantum Fisher information. The latter is independently extracted from coherent dynamical responses of the system under weak parametric modulations, without performing any quantum-...
Waveplate:flipsthespinofparticlespassingslit2,withoutaffectinglinearmomentum.Stillnointerference–becausewecouldcheckthespinoftheparticle,anddiscoverwhichslitithadtraversed.Musttherebeadisturbance?Bohr:MeasurementofXdisturbsP;etceteraMeasurementmeansamplificationofaquantumphenomenonbyinteractionwithsome“large”(classical)...
However, particles “manifest” as events only as a result of “measurement” (through the “Born rule”)—it is therefore fundamentally wrong to assume that they separate and travel, moving apart in real physical space, to the detectors from the source while unobserved (in Hilbert space, ...
Then, the Wigner function is measured at the point in the phase space that is indicated by the amplitude and the phase of the probe field. The experiment from reference [62] was limited by the efficiency of the detectors (avalanche photodiodes), since the equipment was not able to resolve ...
measurement linear-algebra pauli-group Frederik vom Ende 3,762 modified22 mins ago 1vote 1answer 19views Virtual check qubits in the context of surface code David Dentelski 288 answered43 mins ago 0votes 0answers 7views GHZ depth proving by density matrices ...
we would consider screens or absorbing detectors, in which case the final state of the measured particle cannot be determined. This does not restrict the arguments because we are not interested in the final states of absorbed particles but only in the measurement outcomes and in the state of th...
a joint Bell-state measurement (BSM) between the qubit sent by Alice and Bob, projecting them onto one of the four Bell states. Then the BSM result is sent to Bob via a classical channel, who performs a unitary (U) transformation on the signal photon to recover the initial state...
In addition, high counting rate single-photon detectors are assumed for quantum state measurement29,30. In this case, the photon counting saturation issue is negligible, and there is no constraint on the value of \(\mu _1\). The simulation results are shown as the blue and red curve in ...