关于双模高斯状态的挤压和纠潜力的等价性
Bohan Li1, Aritra Das1, Spyros Tserkis2
1Department of Quantum Science and Technology, Centre for Quantum Computation and Communication Technology, Australian National University, Canberra, ACT, 2601, Australia.
Scientific reports
|July 20, 2023
概括
我们发现,所有双模高斯状态的纠潜力相当于它们的形成挤压. 这结合了两个关键的量子属性,使用了一个新的状态类和一个明确的算法.
科学领域:
- 量子信息科学 量子信息科学
- 连续变量量子系统是一个连续变量量子系统.
背景情况:
- 纠潜力通过被动转换量化了可实现的最大纠.
- 以前的研究表明,纠潜力受到形成挤压的限制,但一般和没有得到证实.
研究的目的:
- 为了引入一个更广泛的状态类,这些状态和了纠潜力.
- 假设并验证所有双模高斯态都可以转化为这个类.
- 为连续变量量子性质统一资源理论.
主要方法:
- 引入了一种新类型的双模高斯状态.
- 对于这个新类的边界和的数学证明.
- 开发一种用于被动转换的显式算法.
- 进行了广泛的数值测试来支持这个假设.
主要成果:
- 一个更大的类型的状态被证明可以和纠潜力.
- 假设所有的二模高斯态都可以被动地转化为这种和类.
- 证明所有双模高斯态状态的纠潜力和形成挤压之间的等价性.
结论:
- 所有双模高斯状态的纠潜力等于它们的形成挤压.
- 这一发现统一了连续变量系统的关键量子资源理论.
- 这项研究为在更广泛的背景下理解纠提供了一条途径.
相关概念视频
Gauss's Law
7.4K
If a closed surface does not have any charge inside where an electric field line can terminate, then the electric field line entering the surface at one point must necessarily exit at some other point of the surface. Therefore, if a closed surface does not have any charges inside the enclosed volume, then the electric flux through the surface is zero. What happens to the electric flux if there are some charges inside the enclosed volume? Gauss's law gives a quantitative answer to this question.
7.4K
Gauss's Law: Spherical Symmetry
7.6K
A charge distribution has spherical symmetry if the density of charge depends only on the distance from a point in space and not on the direction. In other words, if the system is rotated, it doesn't look different. For instance, if a sphere of radius R is uniformly charged with charge density ρ0, then the distribution has spherical symmetry. On the other hand, if a sphere of radius R is charged so that the top half of the sphere has a uniform charge density ρ1 and the bottom half...
7.6K
Equivalent Couples
307
In mechanical engineering, the concept of equivalent couples plays a crucial role in understanding and analyzing various mechanical systems.
Two couples are considered to be equivalent if they produce the same rotational effect on a rigid body. In other words, the two couples have the same magnitude and act in the same direction, causing the same angular displacement or acceleration in the body.
For instance, consider two couples lying in the plane of the page, with one having a pair of equal...
Two couples are considered to be equivalent if they produce the same rotational effect on a rigid body. In other words, the two couples have the same magnitude and act in the same direction, causing the same angular displacement or acceleration in the body.
For instance, consider two couples lying in the plane of the page, with one having a pair of equal...
307
Gravitation Between Spherically Symmetric Masses
941
The gravitational potential energy between two spherically symmetric bodies can be calculated from the masses and the distance between the bodies, assuming that the center of mass is concentrated at the respective centers of the bodies.
941
Gauss's Law in Dielectrics
4.5K
Consider a polar dielectric placed in an external field. In such a dielectric, opposite charges on adjacent dipoles neutralize each other, such that the net charge within the dielectric is zero. When a polar dielectric is inserted in between the capacitor plates, an electric field is generated due to the presence of net charges near the edge of the dielectric and the metal plates interface. Since the external electrical field merely aligns the dipoles, the dielectric as a whole is neutral. An...
4.5K
Gauss's Law: Cylindrical Symmetry
7.7K
A charge distribution has cylindrical symmetry if the charge density depends only upon the distance from the axis of the cylinder and does not vary along the axis or with the direction about the axis. In other words, if a system varies if it is rotated around the axis or shifted along the axis, it does not have cylindrical symmetry. In real systems, we do not have infinite cylinders; however, if the cylindrical object is considerably longer than the radius from it that we are interested in,...
7.7K


