Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Operational Amplifiers01:17

Operational Amplifiers

2.3K
The operational amplifier, often referred to as an op-amp, is a multifaceted building block of a circuit. This electronic component functions like a voltage-controlled voltage source and can also be used to create a voltage- or current-controlled current source. The design of an operational amplifier enables it to execute mathematical operations when external components like resistors and capacitors are linked to its terminals. An op-amp has the capacity to sum signals, amplify a signal,...
2.3K
Sum and Difference OpAmps01:22

Sum and Difference OpAmps

1.6K
Operational amplifiers (op-amps) are versatile devices that extend beyond amplification. In this context, two specific op-amp configurations are explored: the summing and difference amplifiers.
A summing amplifier, or an adder, utilizes an op-amp to merge multiple input signals into a single output signal. When audio signals are introduced into its input channels, the input resistors initiate currents that traverse feedback resistors, resulting in an output voltage. Applying Kirchhoff's current...
1.6K
The Quantum-Mechanical Model of an Atom02:45

The Quantum-Mechanical Model of an Atom

62.0K
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...
62.0K
Instrumentation Amplifier01:25

Instrumentation Amplifier

1.3K
An electrocardiography (ECG) machine is an essential piece of medical equipment used to monitor the electrical activity of the heart. It operates by detecting small electrical changes on the skin that result from the depolarization of the heart muscle during each heartbeat. However, these signals are in the microvolt range and can be easily overwhelmed by noise or interference.
To overcome this challenge, an ECG machine utilizes an instrumentation amplifier. This specialized amplifier is...
1.3K
Inverting and Non-inverting OpAmps01:20

Inverting and Non-inverting OpAmps

2.1K
In an inverting amplifier, the input voltage is connected through a resistor to the inverting terminal. Meanwhile, the non-inverting terminal is grounded and a feedback resistor is established between the inverting and output terminal, as depicted in Figure 1.
2.1K
Small-Signal Analysis of MOSFET Amplifiers01:23

Small-Signal Analysis of MOSFET Amplifiers

1.3K
In small-signal analysis, a MOSFET transistor amplifier acts as a linear amplifier when operating in its saturation region. The gate-to-source voltage (VGS) of the MOSFET is the sum of the DC biasing voltage and the small time-varying input signal. This combination sets up the operating point and modulates the drain current (ID) that flows from the drain to the source. When a small AC signal is superimposed on the DC bias voltage at the gate, the instantaneous drain current comprises three...
1.3K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Continuous-surface 3D reconstruction from kilometer-range single-photon LiDAR using score-based priors.

Scientific reports·2026
Same author

Stokes and skyrmion tensors and their application to structured light.

Journal of the Optical Society of America. A, Optics, image science, and vision·2026
Same author

Human activity recognition at a kilometer range using single-photon LiDAR.

Optics express·2026
Same author

A Study of the Avalanche Multiplication and Excess Noise in Al <sub><i>x</i></sub> In<sub>1-<i>x</i></sub> As<sub>γ</sub>Sb<sub>1‑</sub> <sub>γ</sub> Avalanche Photodiodes Lattice-Matched to GaSb.

ACS photonics·2026
Same author

Underwater 3D imaging using a single-photon avalanche diode detector array with multi-event time-to-digital conversion.

Optics express·2026
Same author

Real-time detection of singlet-oxygen signatures using a single-photon avalanche diode detector.

Biomedical optics express·2025
Same journal

Erratum: Spectroscopy and Ground-State Transfer of Ultracold Bosonic ^{39}K^{133}Cs Molecules [Phys. Rev. Lett. 135, 203401 (2025)].

Physical review letters·2026
Same journal

Erratum: Lifetime of the ^{2}F_{7/2} Level in Yb^{+} for Spontaneous Emission of Electric Octupole Radiation [Phys. Rev. Lett. 127, 213001 (2021)].

Physical review letters·2026
Same journal

Laser-Plasma Based Seeded Free Electron Laser in the High-Gain Regime.

Physical review letters·2026
Same journal

Parent Hamiltonians for Stabilizer Quantum Many-Body Scars.

Physical review letters·2026
Same journal

Properties of Heavy Cosmic Nuclei Phosphorus, Chlorine, Argon, Potassium, and Calcium: Results from the Alpha Magnetic Spectrometer.

Physical review letters·2026
Same journal

Role of Spin-Isospin Symmetries in Nuclear β-Decays.

Physical review letters·2026
See all related articles

Related Experiment Video

Updated: Apr 15, 2026

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
09:23

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Published on: May 30, 2014

15.2K

Experimental implementation of a quantum optical state comparison amplifier.

Ross J Donaldson1, Robert J Collins1, Electra Eleftheriadou2

  • 1SUPA, Institute of Photonics and Quantum Sciences, School of Engineering and Physical Sciences, Heriot Watt University, David Brewster Building, Edinburgh EH14 4AS, United Kingdom.

Physical Review Letters
|April 11, 2015
PubMed
Summary
This summary is machine-generated.

This study demonstrates a practical quantum optical amplifier using coherent states for high-fidelity amplification. This advancement improves amplification rates and fidelity for quantum communications, like quantum key distribution.

More Related Videos

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
07:56

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

Published on: September 5, 2019

9.1K
Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source
12:19

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source

Published on: April 4, 2017

9.0K

Related Experiment Videos

Last Updated: Apr 15, 2026

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
09:23

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Published on: May 30, 2014

15.2K
A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
07:56

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

Published on: September 5, 2019

9.1K
Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source
12:19

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source

Published on: April 4, 2017

9.0K

Area of Science:

  • Quantum Optics
  • Quantum Information Science

Background:

  • Nondeterministic quantum optical amplification is crucial for quantum communication systems.
  • Previous schemes often required complex components or were limited to specific states.

Purpose of the Study:

  • To experimentally demonstrate a practical nondeterministic quantum optical amplification scheme.
  • To achieve high fidelity amplification of known coherent states with an increased production rate.

Main Methods:

  • Utilized state comparison and photon subtraction techniques.
  • Employed coherent states as the primary resource, enabling simpler light sources like diode lasers.
  • Avoided complex photonic components.

Main Results:

  • Achieved high fidelity amplification of known coherent states.
  • Demonstrated significant improvements in both fidelity and amplified state production rate compared to previous implementations.
  • Showcased a system not restricted to low amplitude states.

Conclusions:

  • The developed quantum optical amplifier is practical and efficient.
  • This technology can form the basis for trusted quantum repeaters in nonentanglement-based quantum communication systems.
  • Suitable for applications like quantum key distribution and quantum digital signatures.