量子平行向量化数据编码和计算在被困离子和跨子QPU上的计算.
Jan Balewski1, Mercy G Amankwah1,2, Roel Van Beeumen3
1National Energy Research Scientific Computing Center, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA.
Scientific reports
|February 10, 2024
概括
两个新的量子数据编码方法,QCrank和QBArt,增强了数据分析的量子并行性. 这些技术改善了存储,并为DNA匹配和图像检索等任务提供了高效的量子算法.
科学领域:
- 量子信息科学 量子信息科学
- 量子计算是一种量子计算.
- 数据编码数据编码
背景情况:
- 紧的数据表示对于在数据分析中推进量子算法至关重要.
- 开发有效的方法来存储和处理量子系统上的数据是一个关键的挑战.
研究的目的:
- 引入两种新的量子数据编码技术:QCrank和QBArt.
- 证明这些方法在增强量子并行性和实现多种量子算法的有效性.
主要方法:
- QCrank将实值数据编码为量子位旋转,增加存储容量.
- QBArt在计算基础中使用二进制表示来减少测量和直接算术运算.
- 统一控制的旋转门被用来实现量子平行.
主要成果:
- 提出的方法应用于各种数据类型,包括DNA模式匹配,汉明重量计算和复杂值结合.
- 一个384像素的二进制图像检索任务在被困离子量子处理单元 (QPU) 上成功执行.
- 在IBMQ和IonQ的多个云可访问的QPU上进行了基准测试实验.
结论:
- QCrank和QBArt在量子数据表示和处理方面提供了显著的进步.
- 这些编码技术有助于开发用于现实世界数据分析任务的实用量子算法.
- 对不同QPU的实验验证证证了拟议方法的可行性和性能.
相关概念视频
Mass Analyzers: Common Types
610
The quadrupole mass analyzer consists of four cylindrical metal rods arranged in a diamond carrying a DC voltage and a radio-frequency AC voltage. The motion of ions through the quadrupole depends on the field strength, causing only ions of a certain m/z to resonate successfully and strike the detector at a given field strength. Though the transmission rate for these analyzers is high, the exact elemental composition of the sample is not determined because of low resolution; however, they are...
610
Ampere-Maxwell's Law: Problem-Solving
630
A parallel-plate capacitor with capacitance C, whose plates have area A and separation distance d, is connected to a resistor R and a battery of voltage V. The current starts to flow at t = 0. What is the displacement current between the capacitor plates at time t? From the properties of the capacitor, what is the corresponding real current?
To solve the problem, we can use the equations from the analysis of an RC circuit and Maxwell's version of Ampère's law.
For the first part of...
To solve the problem, we can use the equations from the analysis of an RC circuit and Maxwell's version of Ampère's law.
For the first part of...
630
Quantum Numbers
34.7K
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.
34.7K
The Quantum-Mechanical Model of an Atom
42.3K
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.
42.3K
Vector Operations
1.3K
Vectors are physical quantities that have both magnitude and direction. The vector operations include addition, subtraction, and scalar multiplication.
A vector multiplied by a scalar value is called scalar multiplication. The result obtained is a new vector with a different magnitude. If the scalar is positive, the direction of the vector remains the same, but if it is negative, the direction of the vector is reversed. For example, the product of the mass and velocity yields the momentum.
A vector multiplied by a scalar value is called scalar multiplication. The result obtained is a new vector with a different magnitude. If the scalar is positive, the direction of the vector remains the same, but if it is negative, the direction of the vector is reversed. For example, the product of the mass and velocity yields the momentum.
1.3K
Phasor Arithmetics
305
Phasors and their corresponding sinusoids are interrelated, offering unique insights into the behavior of alternating current (AC) circuits. One way to understand this relationship is through the operations of differentiation and integration in both the time and phasor domains.
When the derivative of a sinusoid is taken in the time domain, it transforms into its corresponding phasor multiplied by j-omega (jω) in the phasor domain, where j is the imaginary unit, and ω is the angular...
When the derivative of a sinusoid is taken in the time domain, it transforms into its corresponding phasor multiplied by j-omega (jω) in the phasor domain, where j is the imaginary unit, and ω is the angular...
305


