Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

The de Broglie Wavelength

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...

Quantum Numbers

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.

The Quantum-Mechanical Model of an Atom

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.

Molecular Spectroscopy: Absorption and Emission

Molecular Spectroscopy: Absorption and Emission

Molecules possess discrete energy levels called quantum states. Unlike atoms, which have simpler energy levels, molecules possess additional rotational and vibrational energy levels. Each energy level is separated by an energy gap, with the gaps between adjacent electronic, vibrational, and rotational levels varying significantly. The three types of energy levels in a diatomic molecule are shown in Figure 1.

2D NMR: Heteronuclear Single-Quantum Correlation Spectroscopy (HSQC)

2D NMR: Heteronuclear Single-Quantum Correlation Spectroscopy (HSQC)

Heteronuclear single-quantum correlation spectroscopy (HSQC) is a 2D NMR technique that reveals one-bond correlations between hydrogen and a heteronucleus. The HSQC experiment is similar to the heteronuclear correlation experiment (HETCOR) but is more sensitive. In the HSQC spectrum, the proton chemical shift is plotted on the horizontal F2 axis, while the 13C chemical shift is plotted on the vertical F1 axis. The corresponding proton and 13C spectra are also shown. The HSQC contour plot does...

Electron Paramagnetic Resonance (EPR) Spectroscopy: Organic Radicals

Electron Paramagnetic Resonance (EPR) Spectroscopy: Organic Radicals

Ideally, an unpaired electron shows a single peak in the EPR spectrum due to the transition between the two spin energy states. However, coupling interactions can occur between the spins of the unpaired electron and any neighboring spin-active nuclei. This hyperfine coupling results in hyperfine splitting, where the EPR signal is split into multiplets. The signals split into 2nI + 1 peaks, where n is the number of equivalent nuclei and I is the nuclear spin. These splitting patterns provide...

You might also read

Related Articles

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

Sort by

Same authorSame journal

Pound-Drever-Hall Method for Superconducting-Qubit Readout.

Physical review letters·2026

Same author

Error Mitigation Thresholds in Noisy Random Quantum Circuits.

Physical review. B·2026

Same author

Nonequilibrium universality of the nonreciprocally coupled O(n_{1})×O(n_{2}) model.

Physical review. E·2026

Same author

Correlated Noise Estimation with Quantum Sensor Networks.

Physical review letters·2026

Same author

Efficient Preparation of Dicke States.

Physical review letters·2026

Same author

Publisher Correction: A fault-tolerant neutral-atom architecture for universal quantum computation.

Nature·2026

Same journal

Erratum: Bacterial Turbulence at Compressible Fluid Interfaces [Phys. Rev. Lett. 136, 138301 (2026)].

Physical review letters·2026

Same journal

Unveiling Light-Quark Yukawa Flavor Structure via Dihadron Fragmentation at Lepton Colliders.

Physical review letters·2026

Same journal

Adaptable Route to Fast Coherent State Transport via Bang-Bang-Bang Protocols.

Physical review letters·2026

Same journal

Topological Transition and Emergence of Elasticity of Dislocation in Skyrmion Lattice: Beyond Kittel's Magnetic-Polar Analogy.

Physical review letters·2026

Same journal

Coupling a ^{73}Ge Nuclear Spin to an Electrostatically Defined Quantum Dot in Silicon.

Physical review letters·2026

See all related articles

Search research articles

Related Experiment Video

Updated: Jun 14, 2025

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

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

Published on: May 30, 2014

Quantum Sensing with Erasure Qubits.

Pradeep Niroula^1,2, Jack Dolde³, Xin Zheng³

¹<a href="https://ror.org/02048n894">Joint Center for Quantum Information and Computer Science</a>, NIST/<a href="https://ror.org/047s2c258">University of Maryland</a>, College Park, Maryland 20742, USA.

Physical Review Letters

|September 6, 2024

Summary

This summary is machine-generated.

Erasure qubits, which detect errors, enhance precision in quantum sensing and metrology. Experiments show erasure errors improve clock stability by a factor of two compared to other error types.

More Related Videos

Gradient Echo Quantum Memory in Warm Atomic Vapor

Gradient Echo Quantum Memory in Warm Atomic Vapor

Published on: November 11, 2013

Large Scale Energy Efficient Sensor Network Routing Using a Quantum Processor Unit

Large Scale Energy Efficient Sensor Network Routing Using a Quantum Processor Unit

Published on: September 8, 2023

Related Experiment Videos

Last Updated: Jun 14, 2025

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

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

Published on: May 30, 2014

Gradient Echo Quantum Memory in Warm Atomic Vapor

Gradient Echo Quantum Memory in Warm Atomic Vapor

Published on: November 11, 2013

Large Scale Energy Efficient Sensor Network Routing Using a Quantum Processor Unit

Large Scale Energy Efficient Sensor Network Routing Using a Quantum Processor Unit

Published on: September 8, 2023

Area of Science:

Quantum Information Science
Quantum Metrology
Quantum Sensing

Background:

Erasure qubits are a type of quantum bit where errors are detectable and locatable.
Current research on erasure qubits predominantly targets quantum computing and networking.
Fault tolerance in quantum systems often requires significant overhead.

Purpose of the Study:

To investigate the potential of erasure qubits in quantum sensing and metrology.
To theoretically and experimentally compare the precision of erasure qubits against non-erasure qubits under similar noise conditions.

Main Methods:

Theoretical analysis of erasure qubit performance in sensing and metrology.
Experimental demonstration using a differential optical lattice clock.
Artificial injection of erasure errors (atom loss) and dephasing errors to compare noise impacts.

Main Results:

Theoretical prediction: Erasure qubits offer higher precision than non-erasure qubits for equivalent noise levels.
Experimental validation: Erasure errors led to enhanced precision in clock comparisons compared to dephasing errors at the same error rate.
Quantified improvement: Erasure errors improved clock stability by a factor of two in repeated measurement cycles.

Conclusions:

Erasure qubits present a viable and advantageous approach for enhancing precision in quantum sensing and metrology.
The benefits of erasure qubits extend to various quantum platforms, including Rydberg atoms and superconducting qubits.
Reducing overhead for fault tolerance is a key advantage of erasure qubits, applicable beyond computing and networking.