Is it permissible for a university student to go alone to a professor's office to discuss academic or religious matters, with both of them adhering to good conduct and morals?

It is permissible for a woman to speak with a man who is not her mahram, provided certain conditions are met: that there is no khalwa (private seclusion) with him, that she observes the legal hijab, that her speech is free from theducive softness of voice that might make a man desire her, and that the conversation is limited to what is necessary. If these conditions are fulfilled, there is no objection to it. Accordingly, it is not permissible for a female student to enter her male professor's office when he is alone.