钠钙玻璃中Na/K离子交换光定向耦合器实现的量子投影仪
Quantum projectors implemented with optical directional couplers fabricated by Na/K ion-exchange in soda-lime glass
摘要：
我们提出了一个初步的理论和实验研究的量子投影仪实现的集成光学定向耦合器的钠钙玻璃离子交换钠/钾工艺。理论上考虑由级联的2 × 2定向耦合器形成的器件，以显示其实现N维量子投影测量的能力，并伴随着1-qudit状态的产生。由于这些器件的基本单元是2 × 2定向耦合器，我们提出了一个实验研究，获得，通过光学特性，经验关系的制造和光学参数的这种耦合器。同样，一个二维量子投影仪证明在这样一种方式，投影测量获得的X（对角）和Y（圆形）基地的状态。
英文摘要：
We present a preliminary theoretical and experimental study of quantum projectors implemented by integrated optical directional couplers fabricated by ion-exchange Na/K processes in soda-lime glass. Theoretical considerations about devices formed by concatenated 2x2 directional couplers are presented in order to show their capabilities for implementing N-dimensional quantum projective measurements, and concomitantly the production of 1-qudit states. Since the fundamental unit of these devices are 2x2 directional couplers, we present an experimental study for obtaining, by an optical characterization, empiric relationships between fabrication and optical parameters of such couplers. Likewise, a two-dimensional quantum projector is demonstrated in such a way that projective measurements are obtained for the states of X (diagonal) and Y (circular) bases.
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