论文标题

基于中级QUTRIT改进的量子算术操作,并应用于金融衍生品定价

Intermediate Qutrit-based Improved Quantum Arithmetic Operations with Application on Financial Derivative Pricing

论文作者

Saha, Amit, Chatterjee, Turbasu, Chattopadhyay, Anupam, Chakrabarti, Amlan

论文摘要

在某些量子算法中,对于资源估计,算术操作至关重要。在二进制量子系统中,已经实现了算术操作的某些有效实施,例如加法/减法,乘法/除法,平方根,指数和弧氨酸等,其中将资源报告为许多Toffoli大门或带有Ancilla的T门。最近,已经证明可以使用中间QUTRIT代替Ancilla,从而使我们能够在不含Ancilla的边境区域有效地操作。在本文中,我们将中间QUTRIT方法纳入了上述所有量子算术操作的有效实现,上面提到的有关门数和电路深度没有T门和Ancilla。我们使用中级QUTRIT的资源估算可以指导未来的研究,旨在考虑计算问题算术操作的成本。作为与财务有关的计算问题的应用,有望从量子计算机中获得好处,其中量子算术电路将发挥重要作用。特别是,对于使用重新参数化方法以及衍生定价的回报计算,Arcsine和Square Root的量子算术电路是必需的。因此,在核心算术电路以及衍生定价的完整应用中研究了这些改进。由于我们的中间QUTRIT方法需要访问更高的能量水平,因此使设计容易出错,因此,我们表明,由于我们与Qubit-ossly Works相比,我们实现了鲁棒性,因此误差概率的百分比下降是显着的。

In some quantum algorithms, arithmetic operations are of utmost importance for resource estimation. In binary quantum systems, some efficient implementation of arithmetic operations like, addition/subtraction, multiplication/division, square root, exponential and arcsine etc. have been realized, where resources are reported as a number of Toffoli gates or T gates with ancilla. Recently it has been demonstrated that intermediate qutrits can be used in place of ancilla, allowing us to operate efficiently in the ancilla-free frontier zone. In this article, we have incorporated intermediate qutrit approach to realize efficient implementation of all the quantum arithmetic operations mentioned above with respect to gate count and circuit-depth without T gate and ancilla. Our resource estimates with intermediate qutrits could guide future research aimed at lowering costs considering arithmetic operations for computational problems. As an application of computational problems, related to finance, are poised to reap the benefit of quantum computers, in which quantum arithmetic circuits are going to play an important role. In particular, quantum arithmetic circuits of arcsine and square root are necessary for path loading using the re-parameterization method, as well as the payoff calculation for derivative pricing. Hence, the improvements are studied in the context of the core arithmetic circuits as well as the complete application of derivative pricing. Since our intermediate qutrit approach requires to access higher energy levels, making the design prone to errors, nevertheless, we show that the percentage decrease in the probability of error is significant owing to the fact that we achieve circuit robustness compared to qubit-only works.

扫码加入交流群

加入微信交流群

微信交流群二维码

扫码加入学术交流群,获取更多资源