Matteo Piccolini, Marcin Karczewski, Andreas Winter and Rosario Lo Franco
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引用次数: 0
Abstract
We propose an interferometric scheme for generating the totally antisymmetric state of N identical bosons with N internal levels (generalized singlet). This state is a resource for various problems with dramatic quantum advantage. The procedure uses a sequence of Fourier multi-ports, combined with coincidence measurements filtering the results. Successful preparation of the generalized singlet is confirmed when the N particles of the input state stay separate (anti-bunch) on each multiport. The scheme is robust to local lossless noise and works even with a totally mixed input state.
我们提出了一种干涉测量方案,用于生成具有 N 个内部水平(广义单子)的 N 个相同玻色子的完全不对称态。这种状态是解决各种问题的资源,具有显著的量子优势。该过程使用一连串傅立叶多端口,结合巧合测量过滤结果。当输入态的 N 个粒子在每个多端口上保持分离(反捆绑)时,就能确认广义单子的成功制备。该方案对局部无损噪声具有很强的鲁棒性,即使在输入状态完全混合的情况下也能正常工作。
期刊介绍:
Driven by advances in technology and experimental capability, the last decade has seen the emergence of quantum technology: a new praxis for controlling the quantum world. It is now possible to engineer complex, multi-component systems that merge the once distinct fields of quantum optics and condensed matter physics.
Quantum Science and Technology is a new multidisciplinary, electronic-only journal, devoted to publishing research of the highest quality and impact covering theoretical and experimental advances in the fundamental science and application of all quantum-enabled technologies.