{'fraction_non_alphanumeric': 0.015544041450777202, 'fraction_numerical': 0.0, 'mean_word_length': 5.744186046511628, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Canonical quantisation of massless superparticles

As an exercise in applying Dirac's methods, massless superparticles are quantised non-covariantly both without and with gauge fixing. The effects on their global symmetries are studied, and all operator ordering questions are discussed and resolved in detail. This allows a direct comparison with a recent treatment of massive superparticles in which covariant but otherwise similar techniques were used. It also provides an illustration of the generic behaviour of global symmetries under non-covariant quantisation procedures.