Search Results - "Kurizki, G"
-
1
Work extraction from heat-powered quantized optomechanical setups
Published in Scientific reports (15-01-2015)“…We analyze work extraction from an autonomous (self-contained) heat-powered optomechanical setup. The initial state of the quantized mechanical oscillator…”
Get full text
Journal Article -
2
Minimal quantum thermal machine in a bandgap environment: non-Markovian features and anti-Zeno advantage
Published in New journal of physics (01-03-2022)“…Abstract A minimal model of a quantum thermal machine is analyzed, where a driven two level working medium (WM) is embedded in an environment (reservoir) whose…”
Get full text
Journal Article -
3
Catalysis of heat-to-work conversion in quantum machines
Published in Proceedings of the National Academy of Sciences - PNAS (14-11-2017)“…We propose a hitherto-unexplored concept in quantum thermodynamics: catalysis of heat-to-work conversion by quantum nonlinear pumping of the piston mode which…”
Get full text
Journal Article -
4
Atomic homodyne detection of continuous-variable entangled twin-atom states
Published in Nature (London) (01-12-2011)“…An atomic analogue to homodyne detection for the measurement of matter-wave quadratures is realized, which is needed to extend quantum applications to massive…”
Get full text
Journal Article -
5
Work and energy gain of heat-pumped quantized amplifiers
Published in Europhysics letters (01-09-2013)“…We investigate heat-pumped single-mode amplifiers of quantized fields in high-Q cavities based on noninverted two-level systems. Their power generation is…”
Get full text
Journal Article -
6
Quantum bath refrigeration towards absolute zero: challenging the unattainability principle
Published in Physical review letters (27-08-2012)“…A minimal model of a quantum refrigerator, i.e., a periodically phase-flipped two-level system permanently coupled to a finite-capacity bath (cold bath) and an…”
Get full text
Journal Article -
7
Thermodynamic bounds on work extraction from photocells and photosynthesis
Published in The European physical journal. ST, Special topics (01-06-2021)“…We put forward a unified thermodynamic analysis of generic minimal models of solar-powered cyclic processes that can be viewed as quantum heat engines. The…”
Get full text
Journal Article -
8
Unified theory of dynamically suppressed qubit decoherence in thermal baths
Published in Physical review letters (24-09-2004)“…We develop a unified theory of dynamically suppressed decay and decoherence by external fields in qubits coupled to arbitrary thermal baths and dephasing…”
Get full text
Journal Article -
9
Universal dynamical control of quantum mechanical decay: modulation of the coupling to the continuum
Published in Physical review letters (31-12-2001)“…We derive and investigate an expression for the dynamically modified decay of states coupled to an arbitrary continuum. This expression is universally valid…”
Get full text
Journal Article -
10
Acceleration of quantum decay processes by frequent observations
Published in Nature (London) (01-06-2000)“…In theory, the decay of any unstable quantum state can be inhibited by sufficiently frequent measurements-the quantum Zeno effect. Although this prediction has…”
Get full text
Journal Article -
11
Preventing multipartite disentanglement by local modulations
Published in Physical review letters (15-09-2006)“…An entangled multipartite system coupled to a zero-temperature bath undergoes rapid disentanglement in many realistic scenarios due to local, symmetry-breaking…”
Get full text
Journal Article -
12
Bosonic amplification of noise-induced suppression of phase diffusion
Published in Physical review letters (06-06-2008)“…We study the effect of noise-induced dephasing on collisional phase diffusion in the two-site Bose-Hubbard model. Dephasing of the quasimomentum modes may slow…”
Get full text
Journal Article -
13
Heat-machine control by quantum-state preparation: from quantum engines to refrigerators
Published in Physical review. E, Statistical, nonlinear, and soft matter physics (01-08-2014)“…We explore the dependence of the performance bounds of heat engines and refrigerators on the initial quantum state and the subsequent evolution of their…”
Get full text
Journal Article -
14
Minimal universal quantum heat machine
Published in Physical review. E, Statistical, nonlinear, and soft matter physics (01-01-2013)“…In traditional thermodynamics the Carnot cycle yields the ideal performance bound of heat engines and refrigerators. We propose and analyze a minimal model of…”
Get full text
Journal Article -
15
Quantum mechanically enhanced performance of simple heat machines
Published in Physica scripta (07-10-2015)“…We revisit the thermodynamic bounds of work extraction in simple quantum heat machines subject to control by frequent modulations that do not comply with…”
Get full text
Journal Article -
16
-
17
On the thermodynamics of the difference between energy transfer rate and heat engine efficiency
Published in The European physical journal. ST, Special topics (01-06-2021)“…We study the difference between the energy transfer rate and the engine efficiency with a microscopic model, widely used in the theoretical description of…”
Get full text
Journal Article -
18
Rotons in gaseous Bose-Einstein condensates irradiated by a laser
Published in Physical review letters (21-03-2003)“…A gaseous Bose-Einstein condensate irradiated by a far off-resonance laser has long-range interatomic correlations caused by laser-induced dipole-dipole…”
Get full text
Journal Article -
19
Density modulations of Bose-Einstein condensates via laser-induced interactions
Published in Physical review letters (01-04-2002)“…We show that the dipole-dipole interatomic forces induced by an off-resonant running laser beam can lead to a self-bound pencil-shaped Bose condensate, even if…”
Get full text
Journal Article -
20
Dynamical control of macroscopic quantum tunneling
Published in Physical review letters (21-05-2004)“…We show that the quantum Zeno and anti-Zeno effects are realizable for macroscopic quantum tunneling by current-bias modulation in Josephson junctions (and…”
Get full text
Journal Article