Transitioning between mathematical physics and experimental physics after earning a PhD is challenging due to the distinct skill sets required for each field. Moving from theory to experiment is generally easier than the reverse, but both paths come with significant hurdles. For theorists seeking to enter experimental work, gaining practical experience often involves volunteering in experimental groups at research universities, which can lead to collaborative opportunities and co-authorship on papers. Conversely, those with a PhD in experimental physics can more readily shift to theoretical work, as it requires fewer resources and can be pursued independently. However, financial stability during this transition is a critical concern, as securing grant funding and maintaining a tenure-track position can be difficult. Ultimately, while it is possible to switch fields, it often requires a genuine passion for the work rather than financial motivation.