Quantum information systems are fragile and highly susceptible to the deleterious effects of environmental noise. One noise source is due to the direct coupling of a massive spin-based quantum system and classical gravitational fields, which will rotate the spin of a system. Accounting for this rotation, called the Wigner rotation, is extremely difficult, and its effect is cumulative for even the most basic operations in quantum computation. However, by embedding the computation into a slightly larger system, we can avoid the decoherence caused by gravity. Additionally, we show that asymptotically in this embedding, the ratio of usable qubits to the entire system is one. While this method is demonstrated for the Wigner rotation, it would apply to any noisy unitary operator that uniformly rotates multi-qubit states in a similar way to the Wigner rotation.

量子信息系统很脆弱，极易受到环境噪声的有害影响。一个噪声源是由于大质量基于自旋的量子系统与经典引力场的直接耦合，这将使系统的自旋发生旋转。解释这种称为维格纳旋转的旋转非常困难，即使对于量子计算中最基本的操作，它的影响也是累积的。然而，通过将计算嵌入到一个稍大的系统中，我们可以避免引力引起的退相干。此外，我们表明，在此嵌入中，可用量子位与整个系统的比率渐近地为 1。虽然此方法针对维格纳旋转进行了演示，