Learning quantum physics from a computer science background is certainly possible. Here are some steps you can follow to get started:
Build a foundation in mathematics: Quantum physics relies heavily on mathematical concepts, so having a solid understanding of mathematics is crucial. Make sure you have a good grasp of linear algebra, calculus, and differential equations. These topics will be essential for understanding the mathematical formalism used in quantum mechanics.
Study introductory quantum mechanics: Begin by studying introductory quantum mechanics. There are several excellent textbooks available that cater to various levels of mathematical background. Some popular choices include "Principles of Quantum Mechanics" by R. Shankar, "Quantum Mechanics: Concepts and Applications" by Nouredine Zettili, or "Quantum Mechanics and Path Integrals" by Richard Feynman and Albert Hibbs.
Learn quantum algorithms and quantum computing: As a computer scientist, you can also focus on the intersection of quantum mechanics and computer science. Study quantum algorithms, such as Shor's algorithm for factoring large numbers and Grover's algorithm for searching databases. There are many resources available online, including textbooks and tutorials, that can help you dive into this field.
Familiarize yourself with quantum programming: Quantum computing often involves writing programs to simulate and implement quantum algorithms. Familiarize yourself with quantum programming languages such as Qiskit (for IBM's quantum computers), Cirq (for Google's quantum computers), or Forest (for Rigetti's quantum computers). These languages provide the tools and libraries necessary to interact with quantum hardware and simulate quantum systems.
Engage in online courses and lectures: Several online platforms offer courses and lectures on quantum physics and quantum computing. Coursera, edX, and Udemy are popular platforms that host courses from renowned universities and experts. Look for courses specifically designed for individuals with a computer science background.
Join quantum computing communities and forums: Engage with the quantum computing community to stay updated on the latest developments, ask questions, and participate in discussions. Online forums like the Quantum Computing Stack Exchange or the IBM Quantum Community can provide valuable insights and connections with experts in the field.
Experiment with quantum simulators and hardware: Many quantum programming frameworks provide access to simulators that allow you to experiment with quantum algorithms and systems. Start by working with these simulators to gain hands-on experience. Additionally, some cloud-based quantum computing providers, like IBM Quantum Experience or Google Quantum Computing Playground, offer limited access to real quantum hardware.
Continue learning and exploring advanced topics: Quantum physics is a vast and evolving field. As you progress, you can explore advanced topics such as quantum field theory, quantum information theory, quantum cryptography, or quantum optics. Specialize in areas that align with your interests and career goals.
Remember that learning quantum physics can be challenging, especially if you don't have a formal physics background. Patience, persistence, and practice are key to developing a solid understanding of quantum concepts.