84 citations · 220 across the 15 of their papers we have counts for
16 papers
Quantum Contextuality and Entanglement-Free Grover Search in a Trapped-Ion Optical Qudit
Tarun Dutta, Jasper Phua Sing Cheng, Alex Jin +3
Quantum computational advantage is generally attributed to coherent interference and other non-classical resources, yet their respective roles remain difficult to disentangle in ex…
Realizing Quantum Adversarial Defense on a Trapped-ion Quantum Processor
Alex Jin, Tarun Dutta, Anh Tu Ngo +2
Classification is a fundamental task in machine learning, typically performed using classical models. Quantum machine learning (QML), however, offers distinct advantages, such as e…
A scalable narrow linewidth high power laser for barium ion optical qubit
Morteza Ahmadi, Tarun Dutta, Manas Mukherjee
The linewidth of a laser plays a pivotal role in ensuring the high fidelity of ion trap quantum processors and optical clocks. As quantum computing endeavors scale up in qubit numb…
Practicality of training a quantum-classical machine in the NISQ era
Tarun Dutta, Alex Jin, Clarence Liu Huihong +2
Advancements in classical computing have significantly enhanced machine learning applications, yet inherent limitations persist in terms of energy, resource and speed. Quantum mach…
Single-qubit universal classifier implemented on an ion-trap quantum device
Tarun Dutta, Adrián Pérez-Salinas, Jasper Phua Sing Cheng +2
Quantum computers can provide solutions to classically intractable problems under specific and adequate conditions. However, current devices have only limited computational resourc…
Single atom energy-conversion device with a quantum load
Noah Van Horne, Dahyun Yum, Tarun Dutta +4
This work reports the functioning of a single atom energy-conversion device, operating either as a quantum engine or a refrigerator, coupled to a quantum load. The "working fluid"…
High resolution spectroscopy on Te_2: new lines for reference
T. Dutta, M. Mukherjee
Ro-vibrational spectra of different electronic states of molecules are often used as absolute wavelength or frequency standards. These standards are also used to mitigate any slow…
A single atom noise probe operating beyond the Heisenberg limit
Tarun Dutta, Manas Mukherjee
According to the Heisenberg uncertainty principle, the energy or frequency uncertainty of a measurement can be at the best inversely proportional to the observation time (). The…
Optical Barium Ion Qubit
Dahyun Yum, Debashis De Munshi, Tarun Dutta +1
We demonstrate an optical single qubit based on 6S1/2 to 5D5/2 quadrupole transition of a single Ba+ ion operated by diode based lasers only. The resonance wavelength of the 6S1/2…
An exacting transition probability measurement - a direct test of atomic many-body theories
T. Dutta, D. De Munshi, D. Yum +2
A new protocol for measuring the branching fraction of hydrogenic atoms with only statistically limited uncertainty is proposed and demonstrated for the decay of the P leve…
Absolute Te reference for barium ion at nm
T. Dutta, D. De Munshi, M. Mukherjee
Precision atomic spectroscopy is presently the work horse in quantum information technology, metrology, trace analysis and even for fundamental tests in physics. Stable lasers are…
Theory of phonon dynamics in an ion trap
T. Dutta, M. Mukherjee, K. Sengupta
We develop a theory to address the non-equilibrium dynamics of phonons in a one-dimensional trapped ion system. We elaborate our earlier results obtained in Phys. Rev. Lett. {\bf 1…
Precision measurement of branching fractions of Ba: Testing many body theories below one percent level
D. De Munshi, T. Dutta, R. Rebhi +1
The branching fractions from the excited state of singly charged barium ion has been measured with a precision in an ion trap experiment. This measurement along…
Space charge and collective oscillation of ion cloud in a linear Paul trap
P. Mandal, S. Das, D. De Munshi +2
The presence of charged particles in an ion trap modifies the harmonic trapping potential in which they are trapped, leading to observed shifts in secular frequency as well as appe…
Ramp dynamics of phonons in an ion trap: entanglement generation and cooling
T. Dutta, M. Mukherjee, K. Sengupta
We show that the ramp dynamics of phonons in an one-dimensional ion trap can be used for both generating multi-particle entangled states and motional state cooling of a string of t…
Non-equilibrium phonon dynamics in trapped ion systems
T. Dutta, M. Mukherjee, K. Sengupta
We propose a concrete experiment to probe the non-equilibrium local dynamics of the one-dimensional Bose-Hubbard model using a trapped ion system consisting of a linear chain of fe…