811 citations · 1k across the 12 of their papers we have counts for
12 papers
Hybrid quantum optimization in the context of minimizing traffic congestion
Jedwin Villanueva, Gary J Mooney, Bhaskar Roy Bardhan +3
Traffic optimization on roads is a highly complex problem, with one important aspect being minimization of traffic congestion. By mapping to an Ising formulation of the traffic con…
Quantum-Inspired Optimization over Permutation Groups
Rathi Munukur, Bhaskar Roy Bardhan, Devesh Upadhyay +1
Quantum-inspired optimization (QIO) algorithms are computational techniques that emulate certain quantum mechanical effects on a classical hardware to tackle a class of optimizatio…
Towards quantum simulation of spin systems using continuous variable quantum devices
Razieh Annabestani, Brajesh Gupt, Bhaskar Roy Bardhan
We study Bosonic representation of spin Ising model with the application of simulating two level systems using continuous variable quantum processors. We decompose the time evoluti…
Quantum-inspired algorithms in practice
Juan Miguel Arrazola, Alain Delgado, Bhaskar Roy Bardhan +1
We study the practical performance of quantum-inspired algorithms for recommendation systems and linear systems of equations. These algorithms were shown to have an exponential asy…
Advances in Photonic Quantum Sensing
Stefano Pirandola, Bhaskar Roy Bardhan, Tobias Gehring +2
Quantum sensing has become a mature and broad field. It is generally related with the idea of using quantum resources to boost the performance of a number of practical tasks, inclu…
Effects of Temperature and Near Ultraviolet Light on Current-Voltage Characteristics of Colemanite
Chandrima Chatterjee, Bhaskar Roy Bardhan
We investigate current-voltage (I-V) characteristics of the ferroelectric material colemanite at room temperature, at a high temperature, and also under the influence of near ultra…
Ultimate Capacity of a Linear Time-Invariant Bosonic Channel
Bhaskar Roy Bardhan, Jeffrey H. Shapiro
We determine the ultimate classical information capacity of a linear time-invariant bosonic channel with additive phase-insensitive Gaussian noise. This channel can model fiber-opt…
Strong converse for the classical capacity of optical quantum communication channels
Bhaskar Roy Bardhan, Raul Garcia-Patron, Mark M. Wilde +1
We establish the classical capacity of optical quantum channels as a sharp transition between two regimes---one which is an error-free regime for communication rates below the capa…
Strong converse rates for classical communication over thermal and additive noise bosonic channels
Bhaskar Roy Bardhan, Mark M. Wilde
We prove that several known upper bounds on the classical capacity of thermal and additive noise bosonic channels are actually strong converse rates. Our results strengthen the int…
Effects of Phase Fluctuations on Phase Sensitivity and Visibility of Path-Entangled Photon Fock States
Bhaskar Roy Bardhan, Kebei Jiang, Jonathan P. Dowling
We study effects of phase fluctuations on phase sensitivity and visibility of a class of robust path-entangled photon Fock states (known as mm' states) as compared to the maximally…
Dynamical decoupling with tailored waveplates for long distance communication using polarization qubits
Bhaskar Roy Bardhan, Katherine L. Brown, Jonathan P. Dowling
We address the issue of dephasing effects in flying polarization qubits propagating through optical fiber by using the method of dynamical decoupling. The control pulses are implem…
Dynamical Decoupling in Optical Fibers: Preserving Polarization Qubits from Birefringent Dephasing
Bhaskar Roy Bardhan, Petr M. Anisimov, Manish K. Gupta +4
One of the major challenges in quantum computation has been to preserve the coherence of a quantum system against dephasing effects of the environment. The information stored in ph…