Adding 2 numbers together

A beginner in quantum computing seeks to implement basic arithmetic operations using QCADesignerE, an open-source quantum circuit design tool, focusing on adding two numbers like 1+1 or 2+3. The user successfully designed a simple adder circuit for small integers but struggles with scaling it for larger values (e.g., 4+3) and extracting the output (e.g., 7) for further use. The post references PennyLane’s built-in quantum adder as a benchmark, questioning whether similar functionality is achievable in QCADesignerE, highlighting tool limitations for practical applications. The inquiry underscores a common challenge for learners: bridging theoretical quantum circuits with functional implementations, especially for foundational tasks like arithmetic operations. This reflects broader trends in quantum education, where users experiment with open-source tools to replicate classical computing functions, testing the boundaries of current quantum simulation capabilities.