  Quantum information masking is a protocol that hides the original quantum
information from subsystems and spreads it over quantum correlation, which is
available to multipartite except bipartite systems. In this work, we explicitly
study the quantum information masking in multipartite scenario and prove that
all the k-level quantum states can be masked into a m-qudit systems (m > 4)
whose local dimension d < k and the upper bound of k is tighter than the
quantum Singleton bound. In order to observe the masking process intuitively,
explicitly controlled operations are provided. Our scheme well demonstrates the
abundance of quantum correlation between multipartite quantum system and has
potential application in the security of quantum information processing.
