通过辅助量子比特探测光物质系统的对称性破坏
Shuai-Peng Wang1,2, Alessandro Ridolfo3, Tiefu Li4,5
1Quantum Physics and Quantum Information Division, Beijing Computational Science Research Center, Beijing, 100193, China.
Nature communications
|July 20, 2023
概括
研究人员观察到,在一个超导量子系统中,均等对称性被打破. 这种量子真空效应源于流量量子比特和共振器之间的深强合,为新的量子技术铺平了道路.
科学领域:
- 量子物理学的量子物理学
- 超导量子电路中的超导量子电路.
- 量子信息科学是一种量子信息科学.
背景情况:
- 超强和深强合体制中的混合量子系统表现出异国情调的现象.
- 这些系统具有与虚拟光子纠的量子真空.
- 这种真空场可以打破合量子系统的对称性.
研究的目的:
- 通过实验观察量子真空诱导的平价对称性破坏.
- 在深强合体制中研究新的量子真空效应.
主要方法:
- 使用一个流量量子比特与一个块元素超导共振器相合,在深强合模式下.
- 使用辅助的Xmon人造原子来探测对称性破坏.
- 对等性对称性破坏的实验观测.
主要成果:
- 证明了辅助的Xmon人造原子的平衡对称性破坏.
- 将对称性破坏归因于深度强合共振器的真空场.
- 证实了观察到的量子真空效应的非扰动性.
结论:
- 实验证据表明,深强合中的量子真空诱导的对称性破坏.
- 开辟了探索新的量子真空现象的途径.
- 在先进量子技术中的潜在应用.
相关概念视频
Symmetry in Maxwell's Equations
3.5K
Once the fields have been calculated using Maxwell's four equations, the Lorentz force equation gives the force that the fields exert on a charged particle moving with a certain velocity. The Lorentz force equation combines the force of the electric field and of the magnetic field on the moving charge. Maxwell's equations and the Lorentz force law together encompass all the laws of electricity and magnetism. The symmetry that Maxwell introduced into his mathematical framework may not be...
3.5K
The Quantum-Mechanical Model of an Atom
42.5K
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.
42.5K
The de Broglie Wavelength
26.0K
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...
26.0K
IR Spectrum Peak Splitting: Symmetric vs Asymmetric Vibrations
1.1K
Identical bonds within a polyatomic group can stretch symmetrically (in-phase) or asymmetrically (out-of-phase). Similar to hydrogen bonding, these vibrations also influence the shape of the IR peak. Generally, asymmetric stretching frequencies are higher than symmetric stretching frequencies. For example, primary amines exhibit two distinct IR peaks between 3300–3500 cm−1 corresponding to the symmetric and asymmetric N-H stretching, while secondary amines exhibit a single...
1.1K
Electromagnetic Waves in Matter
3.0K
Electromagnetic waves can travel in the vacuum as well as in matter. For example light, which is an electromagnetic wave, can travel through air, water, or glass.
Consider the electromagnetic wave passing through a dielectric medium. In such a case, Maxwell's equations get modified. In Ampere's law, ε0 , the dielectric permittivity of free space is replaced with ε, the permittivity of dielectric. Also, the vacuum permeability μ0 is replaced by the permeability of the...
Consider the electromagnetic wave passing through a dielectric medium. In such a case, Maxwell's equations get modified. In Ampere's law, ε0 , the dielectric permittivity of free space is replaced with ε, the permittivity of dielectric. Also, the vacuum permeability μ0 is replaced by the permeability of the...
3.0K
Conservation of Angular Momentum
10.6K
A system's total angular momentum remains constant if the net external torque acting on the system is zero. Considering a system that consists of n tiny particles, the angular momentum of any tiny particle may change, but the system's total angular momentum would remain constant. The principle of conservation of angular momentum only considers the net external torque acting on the system. While there are internal forces exerted by different particles within the system that also produce...
10.6K


