5 papers
Coherent microwave-to-optical transduction with Yb:YSO spins strongly coupled to a 3D resonator
Ujjwal Gautam, Nasser Gohari Kamel, Sourabh Kumar +1
Microwave-to-optical quantum transducers are essential for entangling remote superconducting qubits. Among the available transduction platforms, ensembles of Er and Yb$^{3+}…
Memory-assisted multimode microwave-to-optical transduction
Ujjwal Gautam, Nasser Gohari Kamel, Sourabh Kumar +1
Microwave-to-optical quantum transducers will enable coherent interconnection between distant superconducting quantum devices. Ongoing explorations with several platforms have show…
Ultra-narrow homogeneous linewidths of erbium-doped silica glass fibers at millikelvin temperatures: magnetic field and temperature dependence
Farhad Rasekh, Nasser Gohari Kamel, Mahdi Bornadel +4
Erbium-doped solids are promising candidates for fiber-based quantum networks due to their emission wavelength, which aligns with the telecom band over which optical fibers exhibit…
Multimode and Random-Access Optical Quantum Memory via Adiabatic Phase Imprinting
Nasser Gohari Kamel, Sourabh Kumar, Ujjwal Gautam +3
A photonic quantum memory capable of simultaneously storing multiple qubits and subsequently recalling any randomly selected subset of the qubits, is essential for large-scale quan…
Towards a Realistic Model for Cavity-Enhanced Atomic Frequency Comb Quantum Memories
Shahrzad Taherizadegan, Jacob H. Davidson, Sourabh Kumar +2
Atomic frequency comb (AFC) quantum memory is a favorable protocol in long distance quantum communication. Putting the AFC inside an asymmetric optical cavity enhances the storage…