دسته بندی:

محاسبات کوانتومی - Quantum-Computing

---

سال انتشار:

2022

---

عنوان انگلیسی مقاله:

The Accuracy vs: Sampling Overhead Trade-off in Quantum Error Mitigation Using Monte Carlo-Based Channel Inversion

---

ترجمه فارسی عنوان مقاله:

دقت در مقابل نمونه‌برداری سربار مبادله در کاهش خطای کوانتومی با استفاده از وارونگی کانال مبتنی بر مونت کارلو

---

منبع:

ieee - ieee Transactions on Communications;2022;70;3;10:1109/TCOMM:2022:3144469

---

نویسنده:

Yifeng Xiong; Soon Xin Ng; Lajos Hanzo

---

چکیده انگلیسی:

Quantum error mitigation (QEM) is a class of promising techniques for reducing the computational error of variational quantum algorithms. In general, the computational error reduction comes at the cost of a sampling overhead due to the variance-boosting effect caused by the channel inversion operation, which ultimately limits the applicability of QEM. Existing sampling overhead analysis of QEM typically assumes exact channel inversion, which is unrealistic in practical scenarios. In this treatise, we consider a practical channel inversion strategy based on Monte Carlo sampling, which introduces additional computational error that in turn may be eliminated at the cost of an extra sampling overhead. In particular, we show that when the computational error is small compared to the dynamic range of the error-free results, it scales with the square root of the number of gates. By contrast, the error exhibits a linear scaling with the number of gates in the absence of QEM under the same assumptions. Hence, the error scaling of QEM remains to be preferable even without the extra sampling overhead. Our analytical results are accompanied by numerical examples.
Index Terms—Quantum error mitigation (QEM), Monte Carlo sampling, sampling overhead, error scaling behaviour.

---

---

قیمت: رایگان

---

توضیحات اضافی:

---

---

---