10 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…
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…
Time uncertainty and fundamental sensitivity limits in quantum sensing: application to optomechanical gravimetry
Salman Sajad Wani, Saif Al-Kuwari, Arshid Shabir +3
High-sensitivity accelerometers and gravimeters, achieving the ultimate limits of measurement sensitivity are key tools for advancing both fundamental and applied physics. While nu…
Quantum Reference Frames in Quantum Circuits: Perspective Dependent Entangling Cost and Coherence Entanglement Trade Offs
Salman Sajad Wani, Saif Al-Kuwari
The perspective-neutral formulation of quantum reference frames (QRFs) treats observers as quantum systems and describes physics relationally from within the composite system. Whil…