Antonio Capolupo | University of Salerno (original) (raw)

Papers by Antonio Capolupo

Physical Review E, 2013

Based on accurate Lennard-Jones-type interaction potentials, we derive a closed set of state equa... more Based on accurate Lennard-Jones-type interaction potentials, we derive a closed set of state equations for the description of warm atomic gases in the presence of ionization processes. The specific heat is predicted to exhibit peaks in correspondence to single and multiple ionizations. Such kinetic analog in atomic gases of the Schottky anomaly in solids is enhanced at intermediate and low atomic densities. The case of adiabatic compression of noble gases is analyzed in detail and the implications on sonoluminescence are discussed. In particular, the predicted plasma electron density in a sonoluminescent bubble turns out to be in good agreement with the value measured in recent experiments.

International Conference on Functional Programming, 2001

We report on recent results showing that a rich non-perturbative vacuum structure is associated w... more We report on recent results showing that a rich non-perturbative vacuum structure is associated with flavor mixing in Quantum Field Theory. We treat explicitly the case of mixing among three generations of Dirac fermions. Exact oscillation formulas are presented exhibiting new features with respect to the usual ones. CP and T violation are also discussed.

By resorting to recent results on the Quantum Field Theory of mixed particles, we discuss some as... more By resorting to recent results on the Quantum Field Theory of mixed particles, we discuss some aspects of three flavor neutrino mixing. Particular emphasis is given to the related algebraic structures and their deformation in the presence of CP violation. A novel geometric phase related to CP violation is introduced.

We examine the general structure of the formulae of neutrino oscillations proposed by Blasone and... more We examine the general structure of the formulae of neutrino oscillations proposed by Blasone and Vitiello(BV). Reconstructing their formulae with the retarded propagators of the flavor neutrino fields for the case of many flavors, we can get easily the formulae which satisfy the suitable boundary conditions and are independent of arbitrary mass parameters {µρ}, as is obtained by BV for the case of two flavors. In this two flavor case, our formulae reduce to those obtained by BV under T -invariance condition. Furthermore, the reconstructed probabilities are shown to coincide with those derived with recourse to the mass Hilbert space Hm which is unitarily inequivalent to the flavor Hilbert space H f . Such a situation is not found in the corresponding construction a la BV. Then the new factors in the BV's formulae, which modify the usual oscillation formulae, are not the trace of the flavor Hilbert space construction, but come from Bogolyubov transformation among the operators of spin-1 2 neutrino with different masses.

Flavor Physics - Proceedings of ICFP2001, 2002

We report on recent results showing that a rich non-perturbative vacuum structure is associated w... more We report on recent results showing that a rich non-perturbative vacuum structure is associated with flavor mixing in Quantum Field Theory. We treat explicitly the case of mixing among three generations of Dirac fermions. Exact oscillation formulas are presented exhibiting new features with respect to the usual ones. CP and T violation are also discussed.

We report on recent results on particle mixing and oscillations in quantum field theory. We discu... more We report on recent results on particle mixing and oscillations in quantum field theory. We discuss the role played in cosmology by the vacuum condensate induced by the neutrino mixing phenomenon. We show that it can contribute to the dark energy of the universe.

In the context of quantum field theory (QFT), we compute the amplitudes of weak interaction proce... more In the context of quantum field theory (QFT), we compute the amplitudes of weak interaction processes such as $ W^{+} \rightarrow e^{+} + \nu_{e}$ and $ W^{+} \rightarrow e^{+} + \nu_{\mu}$ by using different representations of flavor states for mixed neutrinos. Analyzing the short time limit of the above amplitudes, we find that the neutrino states defined in QFT as

International Journal of Modern Physics B, 2014

By resorting to measurements of physically characterizing observables of water samples perturbed ... more By resorting to measurements of physically characterizing observables of water samples perturbed by the presence of Nafion and by iterative filtration processes, we discuss their scale free, selfsimilar fractal properties. By use of algebraic methods the isomorphism is proved between such self-similarity features and the deformed coherent state formalism.

Physics Letters A, 2015

Data from experimental observations of certain brain functions, such as impulse responses of cort... more Data from experimental observations of certain brain functions, such as impulse responses of cortex to electric shocks (average evoked potentials), related with the coexistence of pulses and wave modes in the dynamics of a class of neurological processes (Freeman K-sets), present functional distribution reproducing the Bessel function behavior. This suggests the possibility to replace ordinary differential equations, typically used to model data bases concerning such processes, with couples of damped/amplified oscillators which provide time dependent representation of spherical Bessel equation. The root loci of poles and zeros of the equation solutions are shown to conform to solutions of K-sets. One advantage of the present formalism is that some light is shed on the problem of filling the gap between the behavior at cellular level and the macroscopic dynamics involved in the traffic between the brain and its environment. Breakdown of time-reversal symmetry in each of the (damped and amplified) oscillators is related with the cortex thermodynamic features. This is proposed to be a possible mechanism to deduce lifetime of recorded memory.

Electromagnetic Biology and Medicine, 2015

The experimental conditions by which electromagnetic signals (EMS) of low frequency can be emitte... more The experimental conditions by which electromagnetic signals (EMS) of low frequency can be emitted by diluted aqueous solutions of some bacterial and viral DNAs are described. That the recorded EMS and nanostructures induced in water carry the DNA information (sequence) is shown by retrieval of that same DNA by classical PCR amplification using the TAQ polymerase, including both primers and nucleotides. Moreover, such a transduction process has also been observed in living human cells exposed to EMS irradiation. These experiments suggest that coherent long range molecular interaction must be at work in water so to allow the observed features. The quantum field theory analysis of the phenomenon is presented.

Arxiv preprint hep-th/ …, 2004

We report on the recent result that the non–perturbative vacuum structure associated with neu-tri... more We report on the recent result that the non–perturbative vacuum structure associated with neu-trino mixing leads to a non–zero contribution to the value of the cosmological constant. Its value is estimated by using the natural cut–off appearing in the quantum field theory ...

AIP Conference Proceedings, 2006

ABSTRACT We report on the recent result that the non‐perturbative vacuum structure associated wit... more ABSTRACT We report on the recent result that the non‐perturbative vacuum structure associated with neutrino mixing leads to a non‐zero contribution to the value of the dark energy. © 2006 American Institute of Physics

AIP Conference Proceedings, 2007

By resorting to previous results on flavor mixing in Quantum Field Theory, we show how to consist... more By resorting to previous results on flavor mixing in Quantum Field Theory, we show how to consistently define flavor states of mixed neutrinos as eigenstates of the flavor charge operators.

AIP Conference Proceedings, 2007

We report on the recent result that a contribution to the dark energy can be achieved by the vacu... more We report on the recent result that a contribution to the dark energy can be achieved by the vacuum condensate induced by neutrino mixing phenomenon.

Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2008

We shortly summarize the quantum field theory formalism for the neutrino mixing and report on rec... more We shortly summarize the quantum field theory formalism for the neutrino mixing and report on recent results showing that the vacuum condensate induced by neutrino mixing can be interpreted as a dark energy component of the Universe. PACS numbers: 98.80.Cq, 98.80. Hw, 04.20.Jb, 04.50+h The study of neutrino mixing in the quantum field theory (QFT) framework [3]-[11] has led to the discovery of the unitary inequivalence between the massive neutrino vacuum and the flavor vacuum. This has shed new light on the proper definition of neutrino flavor states and has brought to a deeper understanding of the non-perturbative nature of the particle mixing phenomenon. Pontecorvo oscillation formulas have been recognized to be the quantum mechanical approximation of the exact QFT oscillation formulas and the vacuum energy due to the neutrino-antineutrino pair condensate has been computed , which can be interpreted as dynamically evolving dark energy .

New Journal of Physics, 2009

Sonoluminescence is the intriguing phenomenon of strong light flashes from tiny bubbles in a liqu... more Sonoluminescence is the intriguing phenomenon of strong light flashes from tiny bubbles in a liquid. The bubbles are driven by an ultrasonic wave and need to be filled with noble gas atoms. Approximating the emitted light by blackbody radiation indicates very high temperatures. Although sonoluminescence has been studied extensively, the origin of the sudden energy concentration within the bubble collapse phase is still controversial. It is hence difficult to further increase the temperature inside the bubble for applications like sonochemistry and table top fusion. Here we show that the strongly confined nobel gas atoms inside the bubble can be heated very rapidly by a weak but highly inhomogeneous electric field as it might occur naturally during rapid bubble deformations. An indirect proof of the proposed quantum optical heating mechanism would be the detection of the non-thermal emission of photons in the optical regime prior to the light flash. Our model implies that it is possible to increase the temperature inside the bubble with the help of appropriately detuned laser fields.

AIP Conference Proceedings, 2009

Sonoluminescence occurs when tiny bubbles filled with noble gas atoms are driven by a sound wave.... more Sonoluminescence occurs when tiny bubbles filled with noble gas atoms are driven by a sound wave. Each cycle of the driving field is accompanied by a collapse phase in which the bubble radius decreases rapidly until a short but very strong light flash is emitted. The spectrum of the light corresponds to very high temperatures and hints at the presence of a hot plasma core. While everyone accepts that the effect is real, the main energy focussing mechanism is highly controversial. Here we suggest that the heating of the bubble might be due to a weak but highly inhomogeneous electric field as it occurs during rapid bubble deformations [A. Kurcz et al. (submitted)]. It is shown that such a field couples the quantised motion of the atoms to their electronic states, thereby resulting in very high heating rates.

Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 2009

We show the presence of non-cyclic phases for oscillating neutrinos in the context of quantum fie... more We show the presence of non-cyclic phases for oscillating neutrinos in the context of quantum field theory. Such phases carry information about the non-perturbative vacuum structure associated with the field mixing. By subtracting the condensate contribution of the flavor vacuum, the previously studied quantum mechanics geometric phase is recovered.

Physical Review E, 2013

Based on accurate Lennard-Jones-type interaction potentials, we derive a closed set of state equa... more Based on accurate Lennard-Jones-type interaction potentials, we derive a closed set of state equations for the description of warm atomic gases in the presence of ionization processes. The specific heat is predicted to exhibit peaks in correspondence to single and multiple ionizations. Such kinetic analog in atomic gases of the Schottky anomaly in solids is enhanced at intermediate and low atomic densities. The case of adiabatic compression of noble gases is analyzed in detail and the implications on sonoluminescence are discussed. In particular, the predicted plasma electron density in a sonoluminescent bubble turns out to be in good agreement with the value measured in recent experiments.

International Conference on Functional Programming, 2001

We report on recent results showing that a rich non-perturbative vacuum structure is associated w... more We report on recent results showing that a rich non-perturbative vacuum structure is associated with flavor mixing in Quantum Field Theory. We treat explicitly the case of mixing among three generations of Dirac fermions. Exact oscillation formulas are presented exhibiting new features with respect to the usual ones. CP and T violation are also discussed.

By resorting to recent results on the Quantum Field Theory of mixed particles, we discuss some as... more By resorting to recent results on the Quantum Field Theory of mixed particles, we discuss some aspects of three flavor neutrino mixing. Particular emphasis is given to the related algebraic structures and their deformation in the presence of CP violation. A novel geometric phase related to CP violation is introduced.

We examine the general structure of the formulae of neutrino oscillations proposed by Blasone and... more We examine the general structure of the formulae of neutrino oscillations proposed by Blasone and Vitiello(BV). Reconstructing their formulae with the retarded propagators of the flavor neutrino fields for the case of many flavors, we can get easily the formulae which satisfy the suitable boundary conditions and are independent of arbitrary mass parameters {µρ}, as is obtained by BV for the case of two flavors. In this two flavor case, our formulae reduce to those obtained by BV under T -invariance condition. Furthermore, the reconstructed probabilities are shown to coincide with those derived with recourse to the mass Hilbert space Hm which is unitarily inequivalent to the flavor Hilbert space H f . Such a situation is not found in the corresponding construction a la BV. Then the new factors in the BV's formulae, which modify the usual oscillation formulae, are not the trace of the flavor Hilbert space construction, but come from Bogolyubov transformation among the operators of spin-1 2 neutrino with different masses.

Flavor Physics - Proceedings of ICFP2001, 2002

We report on recent results showing that a rich non-perturbative vacuum structure is associated w... more We report on recent results showing that a rich non-perturbative vacuum structure is associated with flavor mixing in Quantum Field Theory. We treat explicitly the case of mixing among three generations of Dirac fermions. Exact oscillation formulas are presented exhibiting new features with respect to the usual ones. CP and T violation are also discussed.

We report on recent results on particle mixing and oscillations in quantum field theory. We discu... more We report on recent results on particle mixing and oscillations in quantum field theory. We discuss the role played in cosmology by the vacuum condensate induced by the neutrino mixing phenomenon. We show that it can contribute to the dark energy of the universe.

In the context of quantum field theory (QFT), we compute the amplitudes of weak interaction proce... more In the context of quantum field theory (QFT), we compute the amplitudes of weak interaction processes such as $ W^{+} \rightarrow e^{+} + \nu_{e}$ and $ W^{+} \rightarrow e^{+} + \nu_{\mu}$ by using different representations of flavor states for mixed neutrinos. Analyzing the short time limit of the above amplitudes, we find that the neutrino states defined in QFT as

International Journal of Modern Physics B, 2014

By resorting to measurements of physically characterizing observables of water samples perturbed ... more By resorting to measurements of physically characterizing observables of water samples perturbed by the presence of Nafion and by iterative filtration processes, we discuss their scale free, selfsimilar fractal properties. By use of algebraic methods the isomorphism is proved between such self-similarity features and the deformed coherent state formalism.

Physics Letters A, 2015

Data from experimental observations of certain brain functions, such as impulse responses of cort... more Data from experimental observations of certain brain functions, such as impulse responses of cortex to electric shocks (average evoked potentials), related with the coexistence of pulses and wave modes in the dynamics of a class of neurological processes (Freeman K-sets), present functional distribution reproducing the Bessel function behavior. This suggests the possibility to replace ordinary differential equations, typically used to model data bases concerning such processes, with couples of damped/amplified oscillators which provide time dependent representation of spherical Bessel equation. The root loci of poles and zeros of the equation solutions are shown to conform to solutions of K-sets. One advantage of the present formalism is that some light is shed on the problem of filling the gap between the behavior at cellular level and the macroscopic dynamics involved in the traffic between the brain and its environment. Breakdown of time-reversal symmetry in each of the (damped and amplified) oscillators is related with the cortex thermodynamic features. This is proposed to be a possible mechanism to deduce lifetime of recorded memory.

Electromagnetic Biology and Medicine, 2015

The experimental conditions by which electromagnetic signals (EMS) of low frequency can be emitte... more The experimental conditions by which electromagnetic signals (EMS) of low frequency can be emitted by diluted aqueous solutions of some bacterial and viral DNAs are described. That the recorded EMS and nanostructures induced in water carry the DNA information (sequence) is shown by retrieval of that same DNA by classical PCR amplification using the TAQ polymerase, including both primers and nucleotides. Moreover, such a transduction process has also been observed in living human cells exposed to EMS irradiation. These experiments suggest that coherent long range molecular interaction must be at work in water so to allow the observed features. The quantum field theory analysis of the phenomenon is presented.

Arxiv preprint hep-th/ …, 2004

We report on the recent result that the non–perturbative vacuum structure associated with neu-tri... more We report on the recent result that the non–perturbative vacuum structure associated with neu-trino mixing leads to a non–zero contribution to the value of the cosmological constant. Its value is estimated by using the natural cut–off appearing in the quantum field theory ...

AIP Conference Proceedings, 2006

ABSTRACT We report on the recent result that the non‐perturbative vacuum structure associated wit... more ABSTRACT We report on the recent result that the non‐perturbative vacuum structure associated with neutrino mixing leads to a non‐zero contribution to the value of the dark energy. © 2006 American Institute of Physics

AIP Conference Proceedings, 2007

By resorting to previous results on flavor mixing in Quantum Field Theory, we show how to consist... more By resorting to previous results on flavor mixing in Quantum Field Theory, we show how to consistently define flavor states of mixed neutrinos as eigenstates of the flavor charge operators.

AIP Conference Proceedings, 2007

We report on the recent result that a contribution to the dark energy can be achieved by the vacu... more We report on the recent result that a contribution to the dark energy can be achieved by the vacuum condensate induced by neutrino mixing phenomenon.

Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2008

We shortly summarize the quantum field theory formalism for the neutrino mixing and report on rec... more We shortly summarize the quantum field theory formalism for the neutrino mixing and report on recent results showing that the vacuum condensate induced by neutrino mixing can be interpreted as a dark energy component of the Universe. PACS numbers: 98.80.Cq, 98.80. Hw, 04.20.Jb, 04.50+h The study of neutrino mixing in the quantum field theory (QFT) framework [3]-[11] has led to the discovery of the unitary inequivalence between the massive neutrino vacuum and the flavor vacuum. This has shed new light on the proper definition of neutrino flavor states and has brought to a deeper understanding of the non-perturbative nature of the particle mixing phenomenon. Pontecorvo oscillation formulas have been recognized to be the quantum mechanical approximation of the exact QFT oscillation formulas and the vacuum energy due to the neutrino-antineutrino pair condensate has been computed , which can be interpreted as dynamically evolving dark energy .

New Journal of Physics, 2009

Sonoluminescence is the intriguing phenomenon of strong light flashes from tiny bubbles in a liqu... more Sonoluminescence is the intriguing phenomenon of strong light flashes from tiny bubbles in a liquid. The bubbles are driven by an ultrasonic wave and need to be filled with noble gas atoms. Approximating the emitted light by blackbody radiation indicates very high temperatures. Although sonoluminescence has been studied extensively, the origin of the sudden energy concentration within the bubble collapse phase is still controversial. It is hence difficult to further increase the temperature inside the bubble for applications like sonochemistry and table top fusion. Here we show that the strongly confined nobel gas atoms inside the bubble can be heated very rapidly by a weak but highly inhomogeneous electric field as it might occur naturally during rapid bubble deformations. An indirect proof of the proposed quantum optical heating mechanism would be the detection of the non-thermal emission of photons in the optical regime prior to the light flash. Our model implies that it is possible to increase the temperature inside the bubble with the help of appropriately detuned laser fields.

AIP Conference Proceedings, 2009

Sonoluminescence occurs when tiny bubbles filled with noble gas atoms are driven by a sound wave.... more Sonoluminescence occurs when tiny bubbles filled with noble gas atoms are driven by a sound wave. Each cycle of the driving field is accompanied by a collapse phase in which the bubble radius decreases rapidly until a short but very strong light flash is emitted. The spectrum of the light corresponds to very high temperatures and hints at the presence of a hot plasma core. While everyone accepts that the effect is real, the main energy focussing mechanism is highly controversial. Here we suggest that the heating of the bubble might be due to a weak but highly inhomogeneous electric field as it occurs during rapid bubble deformations [A. Kurcz et al. (submitted)]. It is shown that such a field couples the quantised motion of the atoms to their electronic states, thereby resulting in very high heating rates.

Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 2009

We show the presence of non-cyclic phases for oscillating neutrinos in the context of quantum fie... more We show the presence of non-cyclic phases for oscillating neutrinos in the context of quantum field theory. Such phases carry information about the non-perturbative vacuum structure associated with the field mixing. By subtracting the condensate contribution of the flavor vacuum, the previously studied quantum mechanics geometric phase is recovered.