Quantlab Quant Interview Questions
Quantitative research interviews at leading firms such as Quantlab, Susquehanna International Group (SIG), and JP Morgan are renowned for their rigor and depth. Candidates are often challenged with advanced probability, statistics, and mathematical analysis questions that test both theoretical understanding and practical problem-solving skills. In this guide, we delve into real quant interview questions asked by these top firms, providing detailed explanations, step-by-step solutions, and insights into the key concepts involved.
The Fourier transform is a cornerstone in quantitative finance, signal processing, and physics. A common question in quant interviews is to compute and explain the Fourier transform of a Gaussian function, exploring not only the solution but also the underlying concepts.
Let \( f(x) = e^{-a x^2} \) where \( a > 0 \). What is the Fourier transform of \( f(x) \)?
