13 papers
Rescaled Mandelstam Tamm characterization of discrete time crystal response in a disordered Floquet Ising chain
Abrar Ahmed Naqash, Salman Sajad Wani, Saif Al-Kuwari
For pure state unitary dynamics, the Mandelstam Tamm (MT) lower-bound functional compares the endpoint Fubini Study return angle with path averaged energy dispersion. Their distinc…
Constructive realization of self-referential prediction limits in quantum control: Resource bounds and Gödel-safe architectures
Salman Sajad Wani, Álvaro Perales-Eceiza, Saif Al-Kuwari +1
Programmable quantum control systems increasingly rely on predictive modules for certification, real-time feedback, and autonomous decision-making. This development raises a fundam…
Gravitational acceleration encoded in Jaynes Cummings exchange frequencies: Quantum Fisher information, readout, and validity conditions
Salman Sajad Wani, Mughees Ahmed Khan, Mohammad Haris Khan +3
We derive an effective trapped atom--cavity model in which a constant gravitational acceleration shifts the oscillator equilibrium and changes the local standing-wave coupling, the…
Quantum Speed Limit under Calibration Uncertainty
Salman Sajad Wani, Saif Al-Kuwari
Standard quantum speed limits presuppose exactly known parameters, overestimating operational speed under calibration uncertainty. We introduce a projected speed limit based on the…
Chip-scale superconducting quantum gravimeter combining a SQUID, a transmon, and a nanomechanical resonator
Salman Sajad Wani, Mughees Ahmed Khan, Abrar Ahmed Naqash +1
Precise gravitational measurements are vital for geophysics and inertial navigation, but compact gravimeters with high measurement bandwidth remain difficult to realize. We propose…
Quantum gravimetry with intrinsic quantum time uncertainty
Salman Sajad Wani, Sundus Abdi, Rushda Naik +1
We study quantum gravimetry when the interrogation time carries intrinsic uncertainty, motivated by a fundamental limit on temporal resolution associated with the energy--time unce…