Zbigniew Ficek - Academia.edu (original) (raw)

Papers by Zbigniew Ficek

Research paper thumbnail of Quantum interference effects in a cavity QED system

Journal of optics, Jun 16, 2003

ABSTRACT We consider the effect of quantum interference on population distribution and photon sta... more ABSTRACT We consider the effect of quantum interference on population distribution and photon statistics of a cavity field interacting with dressed states of a strongly driven three-level atom. We analyse three coupling configurations of the cavity field to the driven atom, with the cavity frequency tuned to the outer Rabi sideband, the inner Rabi sideband and the central frequency of the 'singly dressed' three-level atom. The quantum doubly dressed states for each configuration are identified and the population distribution and photon statistics are interpreted in terms of transitions among these dressed states and their populations. We find that the population distribution depends strongly on quantum interference and the cavity damping. For the cavity field tuned to the outer or inner Rabi sidebands the cavity damping induces transitions between the dressed states which are forbidden for the ordinary spontaneous emission. Moreover, we find that in the case of the cavity field coupled to the inner Rabi sideband the population distribution is almost Poissonian with a large average number of photons that can be controlled by quantum interference. This system can be considered as a one-atom dressed-state laser with controlled intensity.

Research paper thumbnail of Effect of a broadband squeezed vacuum on two-atom spontaneous emission

Optics Communications, Apr 1, 1991

ABSTRACT

Research paper thumbnail of Atoms in squeezed light fields

Journal of Modern Optics, Mar 1, 1999

Squeezed light is of interest as an example of a non-classical state of the electromagnetic field... more Squeezed light is of interest as an example of a non-classical state of the electromagnetic field and because of its applications both in technology and in fundamental quantum physics. This review concentrates on one aspect of squeezed light, namely its application in atomic spectroscopy. The general properties, detection and application of squeezed light are first reviewed. The basic features of

Research paper thumbnail of Quantum interference and coherence: Theory and experiments

Springer eBooks, 2005

... from Two Nonidentical Atoms 126 3.5.4 Experimental Observation of Quantum Beats in a Type I S... more ... from Two Nonidentical Atoms 126 3.5.4 Experimental Observation of Quantum Beats in a Type I System 129 3.5.5 Quantum Beats in the Intensity—Intensity Correlations 131 3.6 Interference Pattern with a Dark Center 135 4 Quantum Interference as a Control of Decoherence ...

Research paper thumbnail of Quantum beats in spontaneous emission from two atoms in a detuned squeezed vacuum

Journal of The Optical Society of America B-optical Physics, Nov 1, 1997

Research paper thumbnail of Analytical solution for the Mollow and Autler-Townes probe absorption spectra of a three-level atom in a squeezed vacuum

Physical Review A, May 1, 1998

Research paper thumbnail of Saturation of a two-level atom in polychromatic fields

Journal of optics, Nov 30, 2000

ABSTRACT

Research paper thumbnail of Continuous variables approach to entanglement creation and processing

arXiv (Cornell University), Oct 9, 2010

Research paper thumbnail of Conservation rules for entanglement transfer between qubits

Journal of Physics B, Oct 21, 2010

Research paper thumbnail of Two-particle dark-state cooling of a nanomechanical resonator

Physical Review A, Mar 29, 2012

Research paper thumbnail of Phase control of entanglement and quantum steering in a three-mode optomechanical system

New Journal of Physics, Dec 22, 2017

Research paper thumbnail of Einstein-Podolsky-Rosen paradox and quantum steering in a three-mode optomechanical system

Physical Review A, Feb 20, 2014

Research paper thumbnail of Entanglement Evolution Between Two Isolated Multiqubit Systems

OSA Workshop on Entanglement and Quantum Decoherence

We examine the time evolution of entanglement between two qubits of a system of four qubits. The ... more We examine the time evolution of entanglement between two qubits of a system of four qubits. The system is composed of two separate cavities each containing a single two-level atom. The qubits of the system are the two atoms and the two cavity modes. We show that during the transfer of an initial entanglement from atoms to the cavity modes, an additional entanglement is induced between the atoms and the cavity modes. Thus, during the evolution, the system effectively behaves as a six qubit system. In addition, we study the entanglement evolution for an imperfect matching of the atoms to the cavity modes. We show that the imperfect matching can force a stable entangled state to evolve in time and may produce a continuous entanglement in time.

Research paper thumbnail of Quantum Steering: Practical Challenges and Perspectives

arXiv (Cornell University), Jul 27, 2022

Research paper thumbnail of Quantum Harmonic Oscillator

Problems and Solutions in Quantum Physics, 2016

Research paper thumbnail of Relativistic Schrödinger Equation

Quantum Physics for Beginners, 2017

Research paper thumbnail of Planck’s Quantum Hypothesis: Birth of Quantum Theory

Problems and Solutions in Quantum Physics, 2016

Research paper thumbnail of Applications of Schrödinger Equation: Potential (Quantum) Wells

Problems and Solutions in Quantum Physics, 2016

Research paper thumbnail of Interaction between two quantized cavity modes via an ensemble of four-level atoms in the diamond configuration

arXiv: Quantum Physics, 2016

We study a four-level atom in the diamond configuration interacting with two quantized field mode... more We study a four-level atom in the diamond configuration interacting with two quantized field modes supported by a cavity. We show that such Diamond\DiamondDiamond-type atoms intermediate in the interaction between these two modes of the cavity only if lasers drive both transitions to the highest energy level. This system offers thus a fully controllable effective coupling between the two modes. Moreover, we present two applications of this system: a scheme that maps a quantum state of one mode onto the second mode on demand and a fast opening high-Q cavity system that can be easily and coherently controlled with laser fields. Finally, we investigate the feasibility of the fast opening high-Q cavity system and show that this scheme can be implemented experimentally.

Research paper thumbnail of Enhancement of magnon-magnon entanglement inside a cavity

Research paper thumbnail of Quantum interference effects in a cavity QED system

Journal of optics, Jun 16, 2003

ABSTRACT We consider the effect of quantum interference on population distribution and photon sta... more ABSTRACT We consider the effect of quantum interference on population distribution and photon statistics of a cavity field interacting with dressed states of a strongly driven three-level atom. We analyse three coupling configurations of the cavity field to the driven atom, with the cavity frequency tuned to the outer Rabi sideband, the inner Rabi sideband and the central frequency of the 'singly dressed' three-level atom. The quantum doubly dressed states for each configuration are identified and the population distribution and photon statistics are interpreted in terms of transitions among these dressed states and their populations. We find that the population distribution depends strongly on quantum interference and the cavity damping. For the cavity field tuned to the outer or inner Rabi sidebands the cavity damping induces transitions between the dressed states which are forbidden for the ordinary spontaneous emission. Moreover, we find that in the case of the cavity field coupled to the inner Rabi sideband the population distribution is almost Poissonian with a large average number of photons that can be controlled by quantum interference. This system can be considered as a one-atom dressed-state laser with controlled intensity.

Research paper thumbnail of Effect of a broadband squeezed vacuum on two-atom spontaneous emission

Optics Communications, Apr 1, 1991

ABSTRACT

Research paper thumbnail of Atoms in squeezed light fields

Journal of Modern Optics, Mar 1, 1999

Squeezed light is of interest as an example of a non-classical state of the electromagnetic field... more Squeezed light is of interest as an example of a non-classical state of the electromagnetic field and because of its applications both in technology and in fundamental quantum physics. This review concentrates on one aspect of squeezed light, namely its application in atomic spectroscopy. The general properties, detection and application of squeezed light are first reviewed. The basic features of

Research paper thumbnail of Quantum interference and coherence: Theory and experiments

Springer eBooks, 2005

... from Two Nonidentical Atoms 126 3.5.4 Experimental Observation of Quantum Beats in a Type I S... more ... from Two Nonidentical Atoms 126 3.5.4 Experimental Observation of Quantum Beats in a Type I System 129 3.5.5 Quantum Beats in the Intensity—Intensity Correlations 131 3.6 Interference Pattern with a Dark Center 135 4 Quantum Interference as a Control of Decoherence ...

Research paper thumbnail of Quantum beats in spontaneous emission from two atoms in a detuned squeezed vacuum

Journal of The Optical Society of America B-optical Physics, Nov 1, 1997

Research paper thumbnail of Analytical solution for the Mollow and Autler-Townes probe absorption spectra of a three-level atom in a squeezed vacuum

Physical Review A, May 1, 1998

Research paper thumbnail of Saturation of a two-level atom in polychromatic fields

Journal of optics, Nov 30, 2000

ABSTRACT

Research paper thumbnail of Continuous variables approach to entanglement creation and processing

arXiv (Cornell University), Oct 9, 2010

Research paper thumbnail of Conservation rules for entanglement transfer between qubits

Journal of Physics B, Oct 21, 2010

Research paper thumbnail of Two-particle dark-state cooling of a nanomechanical resonator

Physical Review A, Mar 29, 2012

Research paper thumbnail of Phase control of entanglement and quantum steering in a three-mode optomechanical system

New Journal of Physics, Dec 22, 2017

Research paper thumbnail of Einstein-Podolsky-Rosen paradox and quantum steering in a three-mode optomechanical system

Physical Review A, Feb 20, 2014

Research paper thumbnail of Entanglement Evolution Between Two Isolated Multiqubit Systems

OSA Workshop on Entanglement and Quantum Decoherence

We examine the time evolution of entanglement between two qubits of a system of four qubits. The ... more We examine the time evolution of entanglement between two qubits of a system of four qubits. The system is composed of two separate cavities each containing a single two-level atom. The qubits of the system are the two atoms and the two cavity modes. We show that during the transfer of an initial entanglement from atoms to the cavity modes, an additional entanglement is induced between the atoms and the cavity modes. Thus, during the evolution, the system effectively behaves as a six qubit system. In addition, we study the entanglement evolution for an imperfect matching of the atoms to the cavity modes. We show that the imperfect matching can force a stable entangled state to evolve in time and may produce a continuous entanglement in time.

Research paper thumbnail of Quantum Steering: Practical Challenges and Perspectives

arXiv (Cornell University), Jul 27, 2022

Research paper thumbnail of Quantum Harmonic Oscillator

Problems and Solutions in Quantum Physics, 2016

Research paper thumbnail of Relativistic Schrödinger Equation

Quantum Physics for Beginners, 2017

Research paper thumbnail of Planck’s Quantum Hypothesis: Birth of Quantum Theory

Problems and Solutions in Quantum Physics, 2016

Research paper thumbnail of Applications of Schrödinger Equation: Potential (Quantum) Wells

Problems and Solutions in Quantum Physics, 2016

Research paper thumbnail of Interaction between two quantized cavity modes via an ensemble of four-level atoms in the diamond configuration

arXiv: Quantum Physics, 2016

We study a four-level atom in the diamond configuration interacting with two quantized field mode... more We study a four-level atom in the diamond configuration interacting with two quantized field modes supported by a cavity. We show that such Diamond\DiamondDiamond-type atoms intermediate in the interaction between these two modes of the cavity only if lasers drive both transitions to the highest energy level. This system offers thus a fully controllable effective coupling between the two modes. Moreover, we present two applications of this system: a scheme that maps a quantum state of one mode onto the second mode on demand and a fast opening high-Q cavity system that can be easily and coherently controlled with laser fields. Finally, we investigate the feasibility of the fast opening high-Q cavity system and show that this scheme can be implemented experimentally.

Research paper thumbnail of Enhancement of magnon-magnon entanglement inside a cavity