Related Experiment Video
Updated: Sep 7, 2025
10:42
Preparing an Isotopically Pure 229Th Ion Beam for Studies of 229mTh
Published on: May 3, 2019
6.9K
Giant Atoms in a Synthetic Frequency Dimension
Lei Du1, Yan Zhang2, Jin-Hui Wu2
1Beijing Computational Science Research Center, Beijing 100193, China.
Physical Review Letters
|June 17, 2022
Summary
Researchers created giant atoms in a synthetic frequency dimension using superconducting resonators. This enables chiral interactions and directional energy transfer, advancing quantum simulation capabilities.
Area of Science:
- Quantum optics
- Condensed matter physics
- Quantum information science
Background:
- Giant atoms, interacting with waveguides at multiple points, exhibit unique interference effects.
- Real-space giant atoms have been extensively studied for their quantum phenomena.
Purpose of the Study:
- To propose a feasible scheme for constructing giant atoms in a synthetic frequency dimension.
- To enable chiral interactions and simulate directional energy transfer in this synthetic space.
Main Methods:
- Utilizing a dynamically modulated superconducting resonator and a tailored three-level artificial atom.
- Employing analytical and numerical calculations for model validation.
- Breaking momentum space symmetry by tuning the phase of an external atomic field.
Main Results:
- Demonstrated good agreement between the proposed scheme and real-space two-level giant atoms.
- Achieved chiral interactions between the artificial atom and the frequency lattice.
- Showcased the simulation of cascaded interactions and directional excitation transfer.
Conclusions:
- The proposed scheme offers a novel method for creating giant atoms in a synthetic frequency dimension.
- This approach facilitates the exploration of chiral quantum phenomena and energy transfer.
- The model can be extended for simulating complex quantum systems and interactions.
Related Concept Videos
03:37Subatomic Particles
97.6K
Dalton was only partially correct about the particles that make up matter. All matter is composed of atoms, and atoms are composed of three smaller subatomic particles: protons, neutrons, and electrons. These three particles account for the mass and the charge of an atom.
97.6K
01:11Atomic Nuclei: Larmor Precession Frequency
1.7K
The earth's gravitational field produces a 'twisting force' perpendicular to the angular momentum of a spinning mass (such as a spinning top) that causes the mass to 'wobble' around the gravitational field axis in a phenomenon called precession. Similarly, the magnetic moment (μ) of a spinning nucleus precesses due to an external magnetic field directed along the z-axis. The precession of the magnetic moment vector about the magnetic field is called Larmor precession,...
1.7K
02:45The Quantum-Mechanical Model of an Atom
43.2K
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.
43.2K
01:23Dimensional Analysis
1.1K
Dimensional analysis is a powerful tool that is used in physics and engineering to understand and predict the behavior of physical systems. The basic idea behind dimensional analysis is to express physical quantities in terms of fundamental dimensions such as the mass, length, and time. Derived dimensions like the velocity, acceleration, and force are derived from the combinations of these fundamental dimensions.
Dimensional analysis allows us to analyze and compare physical quantities on a...
Dimensional analysis allows us to analyze and compare physical quantities on a...
1.1K
01:18Aliasing
223
Accurate signal sampling and reconstruction are crucial in various signal-processing applications. A time-domain signal's spectrum can be revealed using its Fourier transform. When this signal is sampled at a specific frequency, it results in multiple scaled replicas of the original spectrum in the frequency domain. The spacing of these replicas is determined by the sampling frequency.
If the sampling frequency is below the Nyquist rate, these replicas overlap, preventing the original...
If the sampling frequency is below the Nyquist rate, these replicas overlap, preventing the original...
223
02:28Electronic Structure of Atoms
24.1K
An atom comprises protons and neutrons, which are contained inside the dense, central core called the nucleus, with electrons present around the nucleus. Taking into account the wave–particle duality of electrons and the uncertainty in position around the nucleus, quantum mechanics provides a more accurate model for the atomic structure. It describes atomic orbitals as the regions around the nucleus where electrons of discrete energy exist, characterized by four quantum...
24.1K