氦原子3^3D—2^3P衰变Stokes参数的测定

沈异凡, 李万兴

Liu Yi - Hong, 王蔚生

一个计划被介绍认识到控制远距传物一未知三维(3D ) 由使用一个 non-maximally 纠缠的二粒子的状态的二粒子的状态和在是的 3D 空间的一个 non-maximally 纠缠的三粒子的状态量隧道，并且在隧道的粒子之一被用作控制粒子。分析证明当量隧道具有最大的纠纷时，也就是，隧道由一个 3D 贝尔状态和一个 3D GHZ 状态组成，控制远距传物的全部的成功概率能到达 1。并且这个计划能被扩展控制一个未知 D 维的二粒子的状态的远距传物。

Abhishek Kulkarni, Pradeep Kiran Sarvepalli

Recent years have seen a growing interest in quantum codes in three dimensions (3D). One of the earliest proposed 3D quantum codes is the 3D toric code. It has been shown that 3D color codes can be mapped to 3D toric codes. The 3D toric code on a cubic lattice is also a building block for the welded code which has the highest energy barrier to date. Although well known, the performance of the 3D toric code has not been studied extensively. In this paper we propose efficient decoding algorithms for the 3D toric code on a cubic lattice with and without boundaries and report their performance for various quantum channels. We observe a threshold of $\ensuremath{\gtrsim}12%$ for the bit flip errors, $\ensuremath{\approx}3%$ for the phase flip errors, and 24.8% for the erasure channel. We also study the performance of the welded 3D toric code on the quantum erasure channel. We did not observe a threshold for the welded code over the erasure channel for the parameters we simulated.

王大理, 黄时中

T. Djama

In this paper, we resolve the three-dimensional quantum stationary Hamilton–Jacobi equation (3D-QSHJE) for a general form of the potential, and discuss the nature of the hidden antisymmetric tensor introduced by Bertoldi et al. We derive the 3D quantum law of motion and plot the 3D quantum trajectories of a free particle (electron).

白光, 晴天