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Related Concept Videos

Quantum Numbers02:43

Quantum Numbers

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.
Blind Procedures02:07

Blind Procedures

Ideally, the people who observe and record the children’s behavior are unaware of who was assigned to the experimental or control group, in order to control for experimenter bias. Experimenter bias refers to the possibility that a researcher’s expectations might skew the results of the study. Remember, conducting an experiment requires a lot of planning, and the people involved in the research project have a vested interest in supporting their hypotheses. If the observers knew which child was...
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...
The de Broglie Wavelength02:32

The de Broglie Wavelength

In the macroscopic world, objects that are large enough to be seen by the naked eye follow the rules of classical physics. A billiard ball moving on a table will behave like a particle; it will continue traveling in a straight line unless it collides with another ball, or it is acted on by some other force, such as friction. The ball has a well-defined position and velocity or well-defined momentum, p = mv, which is defined by mass m and velocity v at any given moment. This is the typical...
Blinding01:11

Blinding

Blinding is a commonly used method of not telling participants which treatment a subject is receiving. Blinding is a critical part of a randomized control trial or RCT. It reduces the bias that affects the results. In an RCT, blinding is used in the form of a placebo. A placebo effect occurs when untreated subjects falsely believe they have received the treatment and report improved symptoms. A placebo or a dummy treatment is administered to subjects to negate the bias caused by such an effect.
The Pauli Exclusion Principle03:06

The Pauli Exclusion Principle

The arrangement of electrons in the orbitals of an atom is called its electron configuration. We describe an electron configuration with a symbol that contains three pieces of information:

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Related Experiment Videos

Demonstration of blind quantum computing.

Stefanie Barz1, Elham Kashefi, Anne Broadbent

  • 1Vienna Center for Quantum Science and Technology, Faculty of Physics, University of Vienna, Boltzmanngasse 5, A-1090 Vienna, Austria. stefanie.barz@univie.ac.at

Science (New York, N.Y.)
|January 24, 2012
PubMed
Summary
This summary is machine-generated.

This study demonstrates blind quantum computing, where quantum computations remain private from the server. This breakthrough enables secure delegation of quantum tasks, crucial for private quantum cloud computing.

Related Experiment Videos

Area of Science:

  • Quantum Information Science
  • Quantum Computing Security

Background:

  • Quantum computing promises significant speedups but raises privacy concerns.
  • Delegating computations to quantum servers requires robust security measures.

Purpose of the Study:

  • To experimentally demonstrate blind quantum computing.
  • To enable secure delegation of quantum computations while preserving client privacy.

Main Methods:

  • Utilized measurement-based quantum computation framework.
  • Client prepares and transmits photonic qubits to a quantum server.
  • Server performs delegated computations, including gates and algorithms.

Main Results:

  • Successfully demonstrated blind quantum computing with unknown input, computation, and output.
  • Executed various blind delegated computations, including one- and two-qubit gates.
  • Implemented blind Deutsch and Grover quantum algorithms.

Conclusions:

  • Experimental blind quantum computing is feasible.
  • This technique is vital for unconditionally secure quantum cloud computing.
  • Addresses challenges in making powerful quantum computers accessible and secure.