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19922026
Showing 2017 · quant-phShow all

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quant-ph2017★ 26 cited

Roton entanglement in quenched dipolar Bose-Einstein condensates

Zehua Tian, Seok-Yeong Chä, Uwe R. Fischer

We study quasi-two-dimensional dipolar Bose-Einstein condensates, in which the Bogoliubov excitation spectrum displays, at sufficiently large gas density, a deep roton minimum due…

quant-ph2017★ 48 cited

Coherence, Quantum Fisher Information, Superradiance and Entanglement are Interconvertible Resources

Kok Chuan Tan, Seongjeon Choi, Hyukjoon Kwon +1

We demonstrate that quantum Fisher information and superradiance can be formulated as coherence measures in accordance with the resource theory of coherence, thus establishing a di…

quant-ph2017★ 74 cited

Clock-work trade-off relation for coherence in quantum thermodynamics

Hyukjoon Kwon, Hyunseok Jeong, David Jennings +2

In thermodynamics, quantum coherences - superpositions between energy eigenstates - behave in distinctly nonclassical ways. Recently mathematical frameworks have emerged to account…

quant-ph2017★ 42 cited

Implementation-independent sufficient condition of the Knill-Laflamme type for the autonomous protection of logical qudits by strong engineered dissipation

Jae-Mo Lihm, Kyungjoo Noh, Uwe R. Fischer

Autonomous quantum error correction utilizes the engineered coupling of a quantum system to a dissipative ancilla to protect quantum logical states from decoherence. We show that t…

quant-ph2017★ 8 cited

Anomalous Rabi oscillations in multilevel quantum systems

B. Y. Chang, I. R. Sola, Vladimir S. Malinovsky

We show that the excitation probability of a state within a manifold of levels undergoes Rabi oscillations with frequency determined by the energy difference between the states and…

quant-ph2017★ 5 cited

Quantum Critical Environment Assisted Quantum Magnetometer

Noufal Jaseem, S. Omkar, Anil Shaji

A central qubit coupled to an Ising ring of qubits, operating close to a critical point is investigated as a potential precision quantum magnetometer for estimating an applied…