112 citations · 660 across the 25 of their papers we have counts for
12 papers · 1 filter
Dephasing Enabled Fast Charging of Quantum Batteries
Rahul Shastri, Chao Jiang, Guo-Hua Xu +2
We propose and analyze a universal method to obtain fast charging of a quantum battery by a driven charger system using controlled, pure dephasing of the charger. While the battery…
Controlling Work Output and Coherence in Finite Time Quantum Otto Engines Through Monitoring
Rahul Shastri, B. Prasanna Venkatesh
We examine the role of diagnostic quantum measurements on the work statistics of a finite-time quantum Otto heat engine operated in the steady-state. We consider three pointer-base…
Optimization of Asymmetric Quantum Otto Engine Cycles
Rahul Shastri, B. Prasanna Venkatesh
We consider the optimization of the work output and fluctuations of a finite-time quantum Otto heat engine cycle consisting of compression and expansion work strokes of unequal dur…
Two-stroke Quantum Measurement Heat Engine
M. Sahnawaz Alam, B. Prasanna Venkatesh
We propose and analyze the theoretical model for a two-stroke quantum heat engine with one of the heat baths replaced by a non-selective quantum measurement. We show that the engin…
Quantum Statistical Enhancement of the Collective Performance of Multiple Bosonic Engines
Gentaro Watanabe, B. Prasanna Venkatesh, Peter Talkner +2
We consider an ensemble of indistinguishable quantum machines and show that quantum statistical effects can give rise to a genuine quantum enhancement of the collective thermodynam…
Generalized energy measurements and quantum work compatible with fluctuation theorems
Kosuke Ito, Peter Talkner, B. Prasanna Venkatesh +1
The probability densities of work that can be exerted on a quantum system initially staying in thermal equilibrium are constrained by the fluctuation relations of Jarzynski and Cro…
Collective effects in Casimir-Polder forces
Kanupriya Sinha, B. Prasanna Venkatesh, Pierre Meystre
We study cooperative phenomena in the fluctuation-induced forces between a surface and a system of neutral two-level quantum emitters prepared in a coherent collective state, showi…
On-chip quantum interference of a superconducting microsphere
H. Pino, J. Prat-Camps, K. Sinha +2
We propose and analyze an all-magnetic scheme to perform a Young's double slit experiment with a micron-sized superconducting sphere of mass amu. We show that i…
An optomechanical elevator: Transport of a Bloch oscillating Bose-Einstein condensate up and down an optical lattice by cavity sideband amplification and cooling
B. Prasanna Venkatesh, D. H. J. O'Dell, J. Goldwin
We analyze the optomechanics of an atomic Bose-Einstein condensate interacting with the optical lattice inside a laser-pumped optical cavity and subject to a uniform bias force suc…
Bloch Oscillations of Cold Atoms in a Cavity: Effects of Quantum Noise
B. Prasanna Venkatesh, D. H. J. O'Dell
We extend our theory of Bloch oscillations of cold atoms inside an optical cavity [ Venkatesh et al. Phys. Rev. A 80 063834 (2009)] to include the effects of quantum noise arising…
Band structure loops and multistability in cavity-QED
B. Prasanna Venkatesh, J. Larson, D. H. J. O'Dell
We calculate the band structure of ultracold atoms located inside a laser-driven optical cavity. For parameters where the atom-cavity system exhibits bistability, the atomic band s…
Atomic Bloch-Zener oscillations for sensitive force measurements in a cavity
B. Prasanna Venkatesh, M. Trupke, E. A. Hinds +1
Cold atoms in an optical lattice execute Bloch-Zener oscillations when they are accelerated. We have performed a theoretical investigation into the case when the optical lattice is…