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Related Concept Videos

Quantum Numbers02:43

Quantum Numbers

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It is said that the energy of an electron in an atom is quantized; that is, it can be equal only to certain specific values and can jump from one energy level to another but not transition smoothly or stay between these levels.
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The Quantum-Mechanical Model of an Atom02:45

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Shortly after de Broglie published his ideas that the electron in a hydrogen atom could be better thought of as being a circular standing wave instead of a particle moving in quantized circular orbits, Erwin Schrödinger extended de Broglie’s work by deriving what is now known as the Schrödinger equation. When Schrödinger applied his equation to hydrogen-like atoms, he was able to reproduce Bohr’s expression for the energy and, thus, the Rydberg formula governing hydrogen spectra.
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¹H NMR of Labile Protons: Temporal Resolution01:10

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Protons bonded to heteroatoms such as nitrogen and oxygen exhibit a range of chemical shift values. This is due to the varying degree of hydrogen bonding between the proton and the heteroatom in other molecules. The extent of hydrogen bonding affects the electron density around the proton, thereby giving different chemical shift values for the protons in the proton NMR spectrum.
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Here is a stepwise guide to assessing the body temperature at the temporal artery using a temporal artery thermometer
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Mnemonic Devices01:23

Mnemonic Devices

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Mnemonic devices are cognitive tools that facilitate memory retention by linking new information to familiar patterns or organizational strategies. These techniques are beneficial for remembering complex or lengthy sets of information by simplifying and structuring them in easily retrievable ways.
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Non-ohmic Devices00:51

Non-ohmic Devices

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In most substances, the current flow is proportional to the voltage applied to it. A simple relationship between the values of current, voltage, and resistance is known as Ohm's law. Nonohmic devices do not exhibit a linear relationship between voltage and current. One such device is the semiconducting circuit element known as a diode. A diode is a circuit device that allows current flow in only one direction.
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Compact Quantum Dots for Single-molecule Imaging
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Temporal ghost imaging for quantum device evaluation.

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    This summary is machine-generated.

    Ghost imaging (GI) reconstructs images using correlated beams. Temporal GI (TGI) now evaluates quantum device temporal characteristics, like single-photon avalanche detector efficiency, in real time.

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    Area of Science:

    • Quantum optics
    • Quantum information science
    • Metrology

    Background:

    • Ghost imaging (GI) reconstructs object images via correlated beams, even with noise.
    • This technique offers high-quality imaging capabilities.
    • Quantum devices require precise temporal characteristic evaluation.

    Purpose of the Study:

    • To introduce and demonstrate ghost imaging (GI) in the time domain for quantum device evaluation.
    • To assess the temporal detection efficiency of a gated-mode single-photon avalanche detector (SPAD).

    Main Methods:

    • Implementation of a proof-of-principle experiment using temporal ghost imaging (TGI).
    • Measurement of correlation functions between two beams to evaluate a SPAD's temporal response.
    • Application of GI principles to time-domain analysis of quantum devices.

    Main Results:

    • High-quality evaluation of the temporal characteristics of a gated-mode SPAD was achieved using TGI.
    • Demonstrated the feasibility of using TGI for precise temporal measurements.
    • Confirmed the effectiveness of TGI in characterizing quantum device performance.

    Conclusions:

    • Temporal ghost imaging (TGI) is an effective method for real-time monitoring of quantum device temporal characteristics.
    • TGI provides a novel approach for evaluating quantum devices.
    • This technique offers new perspectives for quantum communication security evaluations.