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

Norton's Theorem01:14

Norton's Theorem

Norton's theorem is a fundamental principle stating that a linear two-terminal circuit can be substituted with an equivalent circuit, which comprises a current source (ⅠN) in parallel with a resistor (RN). Here, ⅠN represents the short-circuit current flowing through the terminals, and RN stands for the input or equivalent resistance at the terminals when all independent sources are deactivated. This implies that the circuit illustrated in Figure (a) can be exchanged with the one depicted in...
Transmission-Line Differential Equations01:26

Transmission-Line Differential Equations

Transmission lines are essential components of electrical power systems. They are characterized by the distributed nature of resistance (R), inductance (L), and capacitance (C) per unit length. To analyze these lines, differential equations are employed to model the variations in voltage and current along the line.
Line Section Model
A circuit representing a line section of length Δx helps in understanding the transmission line parameters. The voltage V(x) and current i(x) are measured from the...
Rolle’s Theorem01:09

Rolle’s Theorem

Rolle’s Theorem states that if a real-valued function is continuous on a closed interval, differentiable on the open interval, and takes equal values at both endpoints, then there is at least one point within the open interval where the derivative of the function is zero.Rolle’s Theorem describes an important property of differentiable functions, this theorem applies to a real-valued function defined on a closed interval, provided three specific conditions are met. First, the function must be...
The Quantum-Mechanical Model of an Atom02:45

The Quantum-Mechanical Model of an Atom

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. Schrödinger...
Parseval's Theorem01:18

Parseval's Theorem

Parseval's theorem is a fundamental concept in signal processing and harmonic analysis. It asserts that for a periodic function, the average power of the signal over one period equals the sum of the squared magnitudes of all its complex Fourier coefficients. This theorem, named after Marc-Antoine Parseval, provides a powerful tool for analyzing the energy distribution in signals.
Interestingly, Parseval's theorem also holds for the trigonometric form of the Fourier series, which expresses a...
Network Function of a Circuit01:25

Network Function of a Circuit

Frequency response analysis in electrical circuits provides vital insights into a circuit's behavior as the frequency of the input signal changes. The transfer function, a mathematical tool, is instrumental in understanding this behavior. It defines the relationship between phasor output and input and comes in four types: voltage gain, current gain, transfer impedance, and transfer admittance. The critical components of the transfer function are the poles and zeros.

You might also read

Related Articles

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

Sort by
Same author

Few-atom-thick silver films for enhanced nanoscale nonlinear optics.

Nature communications·2026
Same author

Real-Time Sign-Problem-Suppressed Quantum Monte Carlo Algorithm for Noisy Quantum Circuit Simulations.

Physical review letters·2026
Same author

Asymmetric two-photon response of an incoherently driven quantum emitter.

Nature communications·2026
Same author

Experimental data reuploading with provable enhanced learning capabilities.

Science advances·2026
Same author

50-km Fiber Interferometer for Testing Gravitational Signatures in Quantum Interference.

Physical review letters·2026
Same author

Time Series Prediction of Open Quantum System Dynamics by Transformer Neural Networks.

Entropy (Basel, Switzerland)·2026
Same journal

Correction: A method for supervoxel-wise association studies of age and other non-imaging variables from coronary computed tomography angiograms.

Scientific reports·2026
Same journal

Poly(bromophenol blue)/CoSn(OH)<sub>6</sub> cubic particles modified pencil graphite electrode for electrochemical determination of diphenhydramine.

Scientific reports·2026
Same journal

Dietary Chlorella, Spirulina, and acidifier modulate jejunal cytokine-related gene expression in broiler chickens.

Scientific reports·2026
Same journal

Perceived physical activity barriers in university students: associations with fatigue and eating behaviours.

Scientific reports·2026
Same journal

Refuge limitation structures habitat use in agricultural landscapes: evidence from Sunda pangolins.

Scientific reports·2026
Same journal

Lightweight stateless transaction verification with outsourced witness updates for UTXO blockchains.

Scientific reports·2026
See all related articles

Related Experiment Video

Updated: May 13, 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

No-go theorem for passive single-rail linear optical quantum computing.

Lian-Ao Wu1, Philip Walther, Daniel A Lidar

  • 1Ikerbasque-Basque Foundation for Science and Department of Theoretical Physics and History of Science, The Basque Country University (EHU/UPV), Bilbao, Spain.

Scientific Reports
|March 7, 2013
PubMed
Summary
This summary is machine-generated.

Universal quantum computing with single-rail photons is not possible using only passive optical elements. This finding demonstrates that photon bunching cannot be suppressed, guiding future optical quantum computer designs.

More Related Videos

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
05:39

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

Published on: August 2, 2019

Related Experiment Videos

Last Updated: May 13, 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

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
05:39

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

Published on: August 2, 2019

Area of Science:

  • Quantum Information Science
  • Optical Quantum Computing
  • Photonic Quantum Systems

Background:

  • Photonic quantum systems are a leading architecture for quantum computation.
  • Dual-rail encoding allows for non-linearities and two-qubit gates using ancillary photons, but faces technical challenges.
  • Single-rail encoding offers deterministic entangled state generation as an alternative.

Purpose of the Study:

  • To investigate the feasibility of universal optical quantum computing with single-rail encoded photons.
  • To determine if passive optical elements alone are sufficient for universal computation in this encoding scheme.

Main Methods:

  • Theoretical analysis of single-rail photonic quantum computing models.
  • Investigation of limitations imposed by passive optical elements (beam splitters, phase shifters).
  • Assessment of photon bunching suppression with ancilla modes and multiple photons.

Main Results:

  • A no-go theorem is proven, demonstrating the impossibility of universal optical quantum computing using only passive elements for single-rail encoded photons.
  • Photon bunching cannot be passively suppressed in single-rail systems, even with ancilla modes and numerous photons.
  • The study highlights fundamental limitations of passive linear optics for achieving universal quantum computation.

Conclusions:

  • Universal quantum computation is not achievable with single-rail encoded photons using solely passive optical components.
  • The findings provide crucial insights for the design and development of scalable optical quantum computers.
  • Alternative approaches or active elements are necessary for realizing universal quantum computation in single-rail photonic systems.