Zheng Shi-Biao
Department of Electronic Science and Applied Physics, Fuzhou University, Fuzhou 350002, People's Republic of China.
Phys Rev Lett. 2003 May 30;90(21):217901. doi: 10.1103/PhysRevLett.90.217901. Epub 2003 May 28.
We propose a scheme for realizing two-qubit quantum phase gates with trapped ions in thermal motion. In the scheme, the ions are simultaneously illuminated by a standing-wave laser tuned to the carrier, which virtually excites several vibrational modes. The scheme puts no limitations on the intensity of the laser field, allowing the production of a quantum logic gate for hot ions with an arbitrarily high speed as long as a laser field of sufficiently high intensity is available.
我们提出了一种利用处于热运动中的俘获离子来实现两比特量子相位门的方案。在该方案中，离子同时被调谐到载波的驻波激光照射，这会虚拟地激发几种振动模式。该方案对激光场的强度没有限制，只要有足够高强度的激光场，就能够以任意高的速度为热离子产生量子逻辑门。
