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  • The quantum dynamics of a nanomechanical resonator coupled to two quantum dots 
    CEBAN, Victor; MACOVEI, Mihai (Technical University of Moldova, 2017)
    We investigate the quantum dynamics of a system composed of two initially excited closely-spaced quantum dots fixed on a quantum mechanical resonator. The system is submitted to environmental effects and obeys the conditions ...
  • Quantum electrical transport properties of topological insulator Bi0.83Sb0.17 nanowires 
    KONOPKO, Leonid; NIKOLAEVA, Albina; HUBER, Tito; ROGACKI, Krzysztof (Tehnica UTM, 2019)
    Recently a new class of insulator, namely, topological insulator (TI) [1], was proposed. A TI is a material with a bulk electronic excitation gap generated by the spin-orbit interaction, which is topologically distinct ...
  • Quantum hybrid system’s dynamics via environmental thermostat 
    CEBAN, Victor; CECOI, Elena; CÂRLIG, Sergiu; MACOVEI, Mihai A. (Technical University of Moldova, 2024)
    We shall present our recent investigations on quantum dynamics in hybrid quantum systems mediated by the environmental quantum thermostat. Particularly, we will discuss the quantum efficiency of a quantum heat engine ...
  • Quantum Information Processes in Protein Microtubules of Brain Neurons 
    ENAKI, N. A.; KOROLI, V. I.; BAZGAN, S.; NISTREANU, A.; PALISTRANT, S.; BOGOEV, D.; TURCAN, M.; PISLARI, T.; BOSHNEAGA, Y.; LAMBROPOULOS, N.; PATEL, S.; KHRENNIKOV, A.; MARINUCCI, M.; KWOK, S. C.; PANNESE, L.; ARNIANI, M.; TORRENTI, R.; MASLOBROD, S.; SCHERBAKOV, V.; KUZNETSOV, E.; MOLDOVANU, I.; MISIC, O.; ODOBESCU, S.; LUPUSOR, A.; CERNEI, A.; VOVC, V.; ARNAUT, O.; CIOBANU, N.; TUZLUCOV, P.; KERNBACH, S.; SORLI, A.; ANISIMOV, V. (Tehnica UTM, 2015)
    We study biologically ‘orchestrated’ coherent quantum processes in collections of protein microtubules of brain neurons, which correlate with, and regulate, neuronal synaptic and membrane activity.
  • Quantum Interference and Surface States Effects in Topological Insulator Bi0.83Sb0.17 Nanowires 
    KONOPKO, Leonid; NIKOLAEVA, Albina; HUBER, Tito (Technical University of Moldova, 2017)
    We investigate the transport properties of topological insulator (TI) Bi0.83Sb0.17 nanowires. Single-crystal nanowire samples with diameters ranging from 75 nm to 1.1 μm are prepared using high frequency liquid phase casting ...
  • Quantum interference of surface states in nanowires of topological insulator BI0.83SB0.17 
    KONOPKO, L. A.; NIKOLAEVA, A. A.; HUBER, T. E.; ROGACKI, K. (Tehnica UTM, 2018)
    We have investigated the galvanomagnetic properties of topological insulator based on single-crystal Bi0.83Sb0.17 nanowires. The single-crystal nanowire samples in the diameter range 75 nm – 1.1 μm were prepared by the ...
  • Quantum Interferences with Equidistant Three-level Quantum Wells 
    CEBAN, V.; MACOVEI, M. A. (Tehnica UTM, 2019)
    A three-level ladder-type equidistant quantum-well with perpendicular transition dipoles, tuned in resonance with an optical cavity have been investigated in the good cavity limit. Under the laser pumping, a quantum ...
  • Quantum light features scattered by pumped twolevel systems with permanent dipoles 
    MIRZAC, A.; CIORNEA, V.; MACOVEI, M. A. (Tehnica UTM, 2018)
    Here we investigate the quantum fluctuations in the light scattered by laser driving two – level systems with permanent dipoles. Particularly, we have observed additional quantum features due to existence of the permanent dipoles.
  • Quantum Oscillations in Topological Insulator Bi2Te2Se Microwires Contacted with Superconducting In2Bi Leads 
    KONOPKO, Leonid; NIKOLAEVA, Albina; HUBER, Tito (Springer Nature Switzerland, 2023)
    We studied the magnetoresistance (MR) of polycrystal Bi2Te2Se topological insulator (TI) microwires contacted with superconducting In2Bi leads. Bi2Te2Se has a simple band structure with a single Dirac cone on the surface ...
  • Quantum oscillations in topological insulator microwires contacted with superconducting In2Bi leads 
    KONOPKO, Leonid; NIKOLAEVA, Albina; HUBER, Tito (Technical University of Moldova, 2024)
    Here we studied the magnetoresistance (MR) of polycrystal Bi2Te2Se topological insulator (TI) microwires contacted with superconducting In2Bi leads. Bi2Te2Se has a simple band structure with a single Dirac cone on the ...
  • Quantum Oscillations of Conductivity in Bismuth Wires 
    CONDREA, Elena (Technical University of Moldova, 2011)
    Measurements of the resistance of bismuth nanowires with several diameters and different quality reveal oscillations on the dependence of resistance under uniaxial strain at T = 4.2 K. Amplitude of oscillations is significant ...
  • Quantum photon conversion via coherently driven permanent dipole systems 
    CARLIG, S.; MIRZAC, A.; BARDETSKI, P.; MACOVEI, M. A. (Universitatea Tehnică a Moldovei, 2021)
    The photon quantum dynamics in a damped single-mode quantized cavity field coupled with a resonantly driven two-level system possessing nonzero permanent dipoles is investigated here. The interacting subsystems are very ...
  • Quantum size effect in semimetal bismuth antimony wires and films 
    NIKOLAEVA, Albina; KONOPKO, Leonid; GRABOV, Vladimir; DEMIDOV, Evghenii; KABLUKOVA, Natalia; KOMAROV, Vladimir; POPOV, Ivan (Tehnica UTM, 2014)
    — We present the experimental results of an investigation of the electron transport of semimetal single- crystal Bi1-xSbx films and wires in temperature range 4.2-300 K. Bi-3at.%Sb films were prepared by the vacuum discrete ...
  • Quantum transport and magnetic phenomena in nano-width crystallite interfaces of topological insulators Bi1-x - Sbx (0,07≤x ≤ 0.2) 
    MUNTYANU, F. M.; CHISTOL, V.; BEJAN, V.; MUNTEANU, V. (Institutul de Fizică Aplicată, 2012)
    In this report, we present the investigation of the magnetic and transport phenomena at low temperatures and in high magnetic fields, having as objective the elucidation of the role played by nano-width CI in the interaction ...
  • Quantum Transport, Superconductivity, and Weak Ferromagnetism at Bicrystal Interfaces of Bi and 3D Topological Insulator BiSb 
    MUNTYANU, Fiodor M.; GILEWSKI, Andrzej; CHISTOL, Vitalie; MUNTEANU, Viorel; ROGACKI, Krzysztof; SIDORENKO, Anatolie (Springer Nature Switzerland, 2018)
    This chapter reviews the results of study of electronic quantum transport, superconductivity, and magnetic phenomena of bicrystals of Bi and BiSb alloy system at temperatures 1.8–100 K and magnetic fields up to 400 kOe. A ...
  • Quantum treatment of self-organization phenomena of excitons and biexcitons 
    CIOBANU, Nellu; ROTARU, Anatol; GONTIA, Ilarie; TRONCIU, Vasile (Technical University of Moldova, 2019)
    We present in this paper the quantum treatment of self-organization phenomena of excitons and biexcitons in the geometry of a ring cavity. Applying the adiabatic elimination method of the exciton and biexciton variables, ...
  • Quantum wells parameters of In0,3Ga0,7As/GaAs VCSEL lasers 
    DOROGAN, A.; DOROGAN, V.; MEREUTA, A.; SYRBU, A.; SYRBU, N.; VIERU, T.; URSAKI, V.; ZALAMAI, V. (Institutul de Fizică Aplicată al AŞM, 2012)
    Injection lasers based on quantum well (QW) and quantum dots (QD) heterostructures with a low value of threshold current density Jth with continuous emission regime and output power value of 3W have been manufactured. VCSEL ...
  • Quartic differential systems with a non-degenerate monodromic critical point and multiple line at infinity 
    ŞUBĂ, Alexandru; VACARAŞ, Olga (Universitatea de Stat din Tiraspol, 2023)
    The quartic differential systems with a non-degenerate monodromic critical point and non-degenerate infinity are considered. We showthat in this family the maximal multiplicity of the line at infinity is seven. Modulo the ...
  • Quasi optical Schottky diode detectors for fast ultra-wideband detection 
    SOBORNYTSKYY, N.; LISAUSKAS, A.; WEICKHMANN, C.; JAKOBI, R.; SEMENOV, A.; HÜBERS, H.; MÜLLER, R.; HOEHL, A.; COJOCARI, O. (IEEE, 2013)
    We present ultra-wideband zero-bias Schottky diode detector modules with monolithically integrated log-spiral antenna. Detectors exhibit a broad-band response with a stronger roll-off above 800 GHz and the minimum ...
  • Quasi optical Schottky diode detectors for fast ultra-wideband detection 
    COJOCARI, O.; SOBORNYTSKYY, N.; WEICKHMANN, C.; JAKOBY, R.; SEMENOV, A.; HÜBERS, H.; MÜLLER, R.; HOEHL, A. (IEEE, 2016)
    We present ultra-wideband zero-bias Schottky diode detector modules with monolithically integrated log-spiral antenna. Detectors exhibit a broad-band response with a stronger roll-off above 800 GHz and the minimum ...

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