3,153 research outputs found

    A burst search for gravitational waves from binary black holes

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    Compact binary coalescence (CBC) is one of the most promising sources of gravitational waves. These sources are usually searched for with matched filters which require accurate calculation of the GW waveforms and generation of large template banks. We present a complementary search technique based on algorithms used in un-modeled searches. Initially designed for detection of un-modeled bursts, which can span a very large set of waveform morphologies, the search algorithm presented here is constrained for targeted detection of the smaller subset of CBC signals. The constraint is based on the assumption of elliptical polarisation for signals received at the detector. We expect that the algorithm is sensitive to CBC signals in a wide range of masses, mass ratios, and spin parameters. In preparation for the analysis of data from the fifth LIGO-Virgo science run (S5), we performed preliminary studies of the algorithm on test data. We present the sensitivity of the search to different types of simulated CBC waveforms. Also, we discuss how to extend the results of the test run into a search over all of the current LIGO-Virgo data set.Comment: 12 pages, 4 figures, 2 tables, submitted for publication in CQG in the special issue for the conference proceedings of GWDAW13; corrected some typos, addressed some minor reviewer comments one section restructured and references updated and correcte

    New phase structure of the Nambu -- Jona - Lasinio model at nonzero chemical potential

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    It is shown that in the Nambu -- Jona - Lasinio model at nonzero chemical potential there are two different massive phases with spontaneously broken chiral symmetry. In one of them particle density is identically zero, in another phase it is not equal to zero. The transition between phases is a phase transition of the second order.Comment: 8 pages, LaTeX, no figures

    Specifics of methodology historical and philosophical researh of hesychasm

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    Π‘Ρ‚Π°Ρ‚ΡŒΡ посвящСна ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΎΠ»ΠΎΠ³ΠΈΠΈ исслСдования исихазма Β­ ΠΎΠ΄Π½ΠΎΠΉ ΠΈΠ· Π²Π°ΠΆΠ½Π΅ΠΉΡˆΠΈΡ… школ византийской философии, ΡΡ‹Π³Ρ€Π°Π²ΡˆΠ°Ρ Π·Π½Π°Ρ‡ΠΈΡ‚Π΅Π»ΡŒΠ½ΡƒΡŽ Ρ€ΠΎΠ»ΡŒ Π² становлСнии соврСмСнной Ρ†ΠΈΠ²ΠΈΠ»ΠΈΠ·Π°Ρ†ΠΈΠΈ. Однако Π΄ΠΎ настоящСго Π²Ρ€Π΅ΠΌΠ΅Π½ΠΈ ΠΎΠ½Π° остаСтся своСобразной Β« terra incognita Β» для ΠΌΠΈΡ€ΠΎΠ²ΠΎΠΉ историко­философской мысли. Π˜ΡΠΈΡ…Π°Π·ΠΌ являСтся своСобразным христианским мистичСским мировосприятиСм , ΠΊΠΎΡ‚ΠΎΡ€ΠΎΠ΅ воплощаСтся Π² ΠΎΠΏΡ€Π΅Π΄Π΅Π»Π΅Π½Π½Ρ‹Ρ… Π΄ΡƒΡ…ΠΎΠ²Π½Ρ‹Ρ… ΠΏΡ€Π°ΠΊΡ‚ΠΈΠΊΠ°Ρ… , ΡΠΎΡΡ‚Π°Π²Π»ΡΡŽΡ‰ΠΈΡ… основу православного аскСтизма. Π•Ρ‰Π΅ ΠΏΠΎΠ»Π²Π΅ΠΊΠ° Π½Π°Π·Π°Π΄ история философии оставляла Π±Π΅Π· внимания философскиС ΠΈ богословскиС учСния Π°Π²Ρ‚ΠΎΡ€ΠΎΠ² ΠΏΠΎΠ·Π΄Π½Π΅ΠΉ античности ΠΈ Ρ€Π°Π½Π½Π΅Π³ΠΎ ΡΡ€Π΅Π΄Π½Π΅Π²Π΅ΠΊΠΎΠ²ΡŒΡ , Π±ΡƒΠ΄ΡŒ Ρ‚ΠΎ христианскиС мыслитСли ΠΈΠ»ΠΈ Π½Π΅ΠΎΠΏΠ»Π°Ρ‚ΠΎΠ½ΠΈΠΊΠΈ . Π­ΠΏΠΎΡ…Π° пост Β­ плотиновских философов Β­ Π½Π΅ΠΎΠΏΠ»Π°Ρ‚ΠΎΠ½ΠΈΠΊΠΎΠ² ΠΈΠ»ΠΈ ΠΊΠΎΠΌΠΌΠ΅Π½Ρ‚Π°Ρ‚ΠΎΡ€ΠΎΠ² АристотСля Β­ Ρ€Π°ΡΡΠΌΠ°Ρ‚Ρ€ΠΈΠ²Π°Π»Π°ΡΡŒ , ΠΊΠ°ΠΊ ΠΏΠ΅Ρ€ΠΈΠΎΠ΄ ΡƒΠΏΠ°Π΄ΠΊΠ° настоящСй философии ΠΈ врСмя Π½Π°Ρ€Π°ΡΡ‚Π°ΡŽΡ‰Π΅ΠΉ ΠΈΡ€Ρ€Π°Ρ†ΠΈΠΎΠ½Π°Π»ΡŒΠ½ΠΎΡΡ‚ΠΈ . По Ρ‚ΠΎΠΉ ΠΆΠ΅ ΠΏΡ€ΠΈΡ‡ΠΈΠ½Π΅ ΡΡ‡ΠΈΡ‚Π°Π»ΠΎΡΡŒ, Ρ‡Ρ‚ΠΎ систСмы христианских мыслитСлСй Π½Π΅ ΠΌΠΎΠ³ΡƒΡ‚ , Π΄Π° ΠΈ Π½Π΅ Π΄ΠΎΠ»ΠΆΠ½Ρ‹ , Π±Ρ‹Ρ‚ΡŒ ΠΏΡ€Π΅Π΄ΠΌΠ΅Ρ‚ΠΎΠΌ историко Β­ философской Π½Π°ΡƒΠΊΠΈ . Π’ ΠΏΠΎΠ»Π½ΠΎΠΉ ΠΌΠ΅Ρ€Π΅ сказанноС относится исихазма . Однако Π½Π° основании Ρ‚Ρ€ΡƒΠ΄ΠΎΠ² французского философа П. Адо , Π² ΡΡ‚Π°Ρ‚ΡŒΠ΅ утвСрТдаСтся , Ρ‡Ρ‚ΠΎ философия Π² эпоху ΠΏΠΎΠ·Π΄Π½Π΅ΠΉ античности, ΠΊΠΎΠ³Π΄Π° Π²ΠΎΠ·Π½ΠΈΠΊΠ°Π΅Ρ‚ исихазм Β­ это , ΠΏΡ€Π΅ΠΆΠ΄Π΅ всСго, ΠΎΠΏΡ€Π΅Π΄Π΅Π»Π΅Π½Π½Ρ‹ΠΉ ΠΎΠ±Ρ€Π°Π· ΠΆΠΈΠ·Π½ΠΈ , поэтому исихазм ΠΌΠΎΠΆΠ½ΠΎ Ρ€Π°ΡΡΠΌΠ°Ρ‚Ρ€ΠΈΠ²Π°Ρ‚ΡŒ ΠΊΠ°ΠΊ ΡΠΏΠ΅Ρ†ΠΈΡ„ΠΈΡ‡Π΅ΡΠΊΡƒΡŽ Ρ„ΠΈΠ»ΠΎΡΠΎΡ„ΡΠΊΡƒΡŽ ΡˆΠΊΠΎΠ»Ρƒ христианского аскСтизма. ΠžΡΠ½ΠΎΠ²Π½Ρ‹ΠΌ соврСмСнным ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΎΠΌ историко Β­ философского исслСдования являСтся гСрмСнСвтичСская рСконструкция ΠΊΡƒΠ»ΡŒΡ‚ΡƒΡ€Π½ΠΎΠ³ΠΎ смысла философских тСкстов , ΠΎΠ΄Π½Π°ΠΊΠΎ исихазм Π½Π΅ ΠΌΠΎΠΆΠ΅Ρ‚ Π±Ρ‹Ρ‚ΡŒ свСдСн ΠΊ «суммС тСкстов» ΠΈΠ»ΠΈ Ρ€Π°Ρ†ΠΈΠΎΠ½Π°Π»ΡŒΠ½Ρ‹Ρ… философских дискурсов. ΠŸΡ€ΠΈ Π΅Π³ΠΎ ΠΈΠ·ΡƒΡ‡Π΅Π½ΠΈΠΈ нСльзя Π½Π΅ ΡƒΡ‡ΠΈΡ‚Ρ‹Π²Π°Ρ‚ΡŒ сущСствованиС ΠΎΠΏΡ‹Ρ‚Π°, стоит Π·Π° тСкстом: ΠΎΠΏΡ‹Ρ‚Π° Π²Π½ΡƒΡ‚Ρ€Π΅Π½Π½Π΅Π³ΠΎ очищСния , Β«ΡƒΠΌΠ½ΠΎΠ³ΠΎ дСлания» ΠΌΠΎΠ»ΠΈΡ‚Π²Ρ‹ , ΠΊΠΎΡ‚ΠΎΡ€Ρ‹ΠΉ часто ΠΈΠΌΠ΅Π΅Ρ‚ Π²Π΅Ρ€Π±Π°Π»ΠΈΠ·ΠΎΠ²Π°Π½Π½ΠΎΠ΅ Π²Ρ‹Ρ€Π°ΠΆΠ΅Π½ΠΈΠ΅. ΠŸΠΎΡΡ‚ΠΎΠΌΡƒ , наряду с использованиСм гСрмСнСвтичСского , Π° Ρ‚Π°ΠΊΠΆΠ΅ сСмиотичСских ΠΏΡ€ΠΈΠ½Ρ†ΠΈΠΏΠΎΠ² ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Ρ‚Π΅Π»ΡŒΡΠΊΠΎΠΉ Ρ€Π°Π±ΠΎΡ‚Ρ‹ с тСкстами , Π²ΠΎΠ·Π½ΠΈΠΊΠ°Π΅Ρ‚ ΠΏΡ€ΠΎΠ±Π»Π΅ΠΌΠ° Π°Π½Π°Π»ΠΈΠ·Π° ΠΎΠΏΡ‹Ρ‚Π° Π΄ΡƒΡ…ΠΎΠ²Π½Ρ‹Ρ… ΠΏΡ€Π°ΠΊΡ‚ΠΈΠΊ . Π­Ρ‚ΠΎ Ρ‚Ρ€Π΅Π±ΡƒΠ΅Ρ‚ использования фСномСнологичСских ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΎΠ² постиТСния мистичСского ΠΎΠΏΡ‹Ρ‚Π°. Π’ Ρ‚ΠΎ ΠΆΠ΅ врСмя мистичСский ΠΎΠΏΡ‹Ρ‚ Π΄ΠΎΠ»ΠΆΠ΅Π½ ΠΎΠΏΠΈΡ€Π°Ρ‚ΡŒΡΡ Π½Π° Ρ€Π΅Π»ΠΈΠ³ΠΈΠΎΠ·Π½ΡƒΡŽ Π΄ΠΎΠ³ΠΌΠ°Ρ‚ΠΈΠΊΡƒ . На основании этого Π² ΡΡ‚Π°Ρ‚ΡŒΠ΅ утвСрТдаСтся , Ρ‡Ρ‚ΠΎ основными мСтодологичСскими ΠΏΡ€ΠΈΠ½Ρ†ΠΈΠΏΠ°ΠΌΠΈ историко Β­ философского исслСдования исихазма являСтся гСрмСнСвтичСский рСконструктивизм мистико Β­ философских тСкстов , фСномСнологичСский дСскриптивизм мистичСского ΠΎΠΏΡ‹Ρ‚Π° ΠΈ ΠΎΠΏΠΎΡ€Π° Π½Π° Π±ΠΎΠ³ΠΎΡΠ»ΠΎΠ²ΡΠΊΡƒΡŽ ΠΈ Ρ†Π΅Ρ€ΠΊΠΎΠ²Π½ΡƒΡŽ Ρ‚Ρ€Π°Π΄ΠΈΡ†ΠΈΡŽ ΠΊΠ°ΠΊ Ρ€Π°Ρ†ΠΈΠΎΠ½Π°Π»ΠΈΠ·Π°Ρ†ΠΈΡŽ этого ΠΎΠΏΡ‹Ρ‚Π°. Π’Π°ΠΊΠΈΠΌ ΠΎΠ±Ρ€Π°Π·ΠΎΠΌ, спСцифика ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΎΠ»ΠΎΠ³ΠΈΠΈ изучСния Π΄Π°Π½Π½ΠΎΠΉ Ρ‚Ρ€Π°Π΄ΠΈΡ†ΠΈΠΈ связана с особСнностями исихазма ΠΊΠ°ΠΊ особого Ρ‚ΠΈΠΏΠ° практичСского философствования .Π‘Ρ‚Π°Ρ‚ΡŒΡ посвящСна ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΎΠ»ΠΎΠ³ΠΈΠΈ исслСдования исихазма Β­ ΠΎΠ΄Π½ΠΎΠΉ ΠΈΠ· Π²Π°ΠΆΠ½Π΅ΠΉΡˆΠΈΡ… школ византийской философии, ΡΡ‹Π³Ρ€Π°Π²ΡˆΠ°Ρ Π·Π½Π°Ρ‡ΠΈΡ‚Π΅Π»ΡŒΠ½ΡƒΡŽ Ρ€ΠΎΠ»ΡŒ Π² становлСнии соврСмСнной Ρ†ΠΈΠ²ΠΈΠ»ΠΈΠ·Π°Ρ†ΠΈΠΈ. Однако Π΄ΠΎ настоящСго Π²Ρ€Π΅ΠΌΠ΅Π½ΠΈ ΠΎΠ½Π° остаСтся своСобразной Β« terra incognita Β» для ΠΌΠΈΡ€ΠΎΠ²ΠΎΠΉ историко­философской мысли. Π˜ΡΠΈΡ…Π°Π·ΠΌ являСтся своСобразным христианским мистичСским мировосприятиСм , ΠΊΠΎΡ‚ΠΎΡ€ΠΎΠ΅ воплощаСтся Π² ΠΎΠΏΡ€Π΅Π΄Π΅Π»Π΅Π½Π½Ρ‹Ρ… Π΄ΡƒΡ…ΠΎΠ²Π½Ρ‹Ρ… ΠΏΡ€Π°ΠΊΡ‚ΠΈΠΊΠ°Ρ… , ΡΠΎΡΡ‚Π°Π²Π»ΡΡŽΡ‰ΠΈΡ… основу православного аскСтизма. Π•Ρ‰Π΅ ΠΏΠΎΠ»Π²Π΅ΠΊΠ° Π½Π°Π·Π°Π΄ история философии оставляла Π±Π΅Π· внимания философскиС ΠΈ богословскиС учСния Π°Π²Ρ‚ΠΎΡ€ΠΎΠ² ΠΏΠΎΠ·Π΄Π½Π΅ΠΉ античности ΠΈ Ρ€Π°Π½Π½Π΅Π³ΠΎ ΡΡ€Π΅Π΄Π½Π΅Π²Π΅ΠΊΠΎΠ²ΡŒΡ , Π±ΡƒΠ΄ΡŒ Ρ‚ΠΎ христианскиС мыслитСли ΠΈΠ»ΠΈ Π½Π΅ΠΎΠΏΠ»Π°Ρ‚ΠΎΠ½ΠΈΠΊΠΈ . Π­ΠΏΠΎΡ…Π° пост Β­ плотиновских философов Β­ Π½Π΅ΠΎΠΏΠ»Π°Ρ‚ΠΎΠ½ΠΈΠΊΠΎΠ² ΠΈΠ»ΠΈ ΠΊΠΎΠΌΠΌΠ΅Π½Ρ‚Π°Ρ‚ΠΎΡ€ΠΎΠ² АристотСля Β­ Ρ€Π°ΡΡΠΌΠ°Ρ‚Ρ€ΠΈΠ²Π°Π»Π°ΡΡŒ , ΠΊΠ°ΠΊ ΠΏΠ΅Ρ€ΠΈΠΎΠ΄ ΡƒΠΏΠ°Π΄ΠΊΠ° настоящСй философии ΠΈ врСмя Π½Π°Ρ€Π°ΡΡ‚Π°ΡŽΡ‰Π΅ΠΉ ΠΈΡ€Ρ€Π°Ρ†ΠΈΠΎΠ½Π°Π»ΡŒΠ½ΠΎΡΡ‚ΠΈ . По Ρ‚ΠΎΠΉ ΠΆΠ΅ ΠΏΡ€ΠΈΡ‡ΠΈΠ½Π΅ ΡΡ‡ΠΈΡ‚Π°Π»ΠΎΡΡŒ, Ρ‡Ρ‚ΠΎ систСмы христианских мыслитСлСй Π½Π΅ ΠΌΠΎΠ³ΡƒΡ‚ , Π΄Π° ΠΈ Π½Π΅ Π΄ΠΎΠ»ΠΆΠ½Ρ‹ , Π±Ρ‹Ρ‚ΡŒ ΠΏΡ€Π΅Π΄ΠΌΠ΅Ρ‚ΠΎΠΌ историко Β­ философской Π½Π°ΡƒΠΊΠΈ . Π’ ΠΏΠΎΠ»Π½ΠΎΠΉ ΠΌΠ΅Ρ€Π΅ сказанноС относится исихазма . Однако Π½Π° основании Ρ‚Ρ€ΡƒΠ΄ΠΎΠ² французского философа П. Адо , Π² ΡΡ‚Π°Ρ‚ΡŒΠ΅ утвСрТдаСтся , Ρ‡Ρ‚ΠΎ философия Π² эпоху ΠΏΠΎΠ·Π΄Π½Π΅ΠΉ античности, ΠΊΠΎΠ³Π΄Π° Π²ΠΎΠ·Π½ΠΈΠΊΠ°Π΅Ρ‚ исихазм Β­ это , ΠΏΡ€Π΅ΠΆΠ΄Π΅ всСго, ΠΎΠΏΡ€Π΅Π΄Π΅Π»Π΅Π½Π½Ρ‹ΠΉ ΠΎΠ±Ρ€Π°Π· ΠΆΠΈΠ·Π½ΠΈ , поэтому исихазм ΠΌΠΎΠΆΠ½ΠΎ Ρ€Π°ΡΡΠΌΠ°Ρ‚Ρ€ΠΈΠ²Π°Ρ‚ΡŒ ΠΊΠ°ΠΊ ΡΠΏΠ΅Ρ†ΠΈΡ„ΠΈΡ‡Π΅ΡΠΊΡƒΡŽ Ρ„ΠΈΠ»ΠΎΡΠΎΡ„ΡΠΊΡƒΡŽ ΡˆΠΊΠΎΠ»Ρƒ христианского аскСтизма. ΠžΡΠ½ΠΎΠ²Π½Ρ‹ΠΌ соврСмСнным ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΎΠΌ историко Β­ философского исслСдования являСтся гСрмСнСвтичСская рСконструкция ΠΊΡƒΠ»ΡŒΡ‚ΡƒΡ€Π½ΠΎΠ³ΠΎ смысла философских тСкстов , ΠΎΠ΄Π½Π°ΠΊΠΎ исихазм Π½Π΅ ΠΌΠΎΠΆΠ΅Ρ‚ Π±Ρ‹Ρ‚ΡŒ свСдСн ΠΊ «суммС тСкстов» ΠΈΠ»ΠΈ Ρ€Π°Ρ†ΠΈΠΎΠ½Π°Π»ΡŒΠ½Ρ‹Ρ… философских дискурсов. ΠŸΡ€ΠΈ Π΅Π³ΠΎ ΠΈΠ·ΡƒΡ‡Π΅Π½ΠΈΠΈ нСльзя Π½Π΅ ΡƒΡ‡ΠΈΡ‚Ρ‹Π²Π°Ρ‚ΡŒ сущСствованиС ΠΎΠΏΡ‹Ρ‚Π°, стоит Π·Π° тСкстом: ΠΎΠΏΡ‹Ρ‚Π° Π²Π½ΡƒΡ‚Ρ€Π΅Π½Π½Π΅Π³ΠΎ очищСния , Β«ΡƒΠΌΠ½ΠΎΠ³ΠΎ дСлания» ΠΌΠΎΠ»ΠΈΡ‚Π²Ρ‹ , ΠΊΠΎΡ‚ΠΎΡ€Ρ‹ΠΉ часто ΠΈΠΌΠ΅Π΅Ρ‚ Π²Π΅Ρ€Π±Π°Π»ΠΈΠ·ΠΎΠ²Π°Π½Π½ΠΎΠ΅ Π²Ρ‹Ρ€Π°ΠΆΠ΅Π½ΠΈΠ΅. ΠŸΠΎΡΡ‚ΠΎΠΌΡƒ , наряду с использованиСм гСрмСнСвтичСского , Π° Ρ‚Π°ΠΊΠΆΠ΅ сСмиотичСских ΠΏΡ€ΠΈΠ½Ρ†ΠΈΠΏΠΎΠ² ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Ρ‚Π΅Π»ΡŒΡΠΊΠΎΠΉ Ρ€Π°Π±ΠΎΡ‚Ρ‹ с тСкстами , Π²ΠΎΠ·Π½ΠΈΠΊΠ°Π΅Ρ‚ ΠΏΡ€ΠΎΠ±Π»Π΅ΠΌΠ° Π°Π½Π°Π»ΠΈΠ·Π° ΠΎΠΏΡ‹Ρ‚Π° Π΄ΡƒΡ…ΠΎΠ²Π½Ρ‹Ρ… ΠΏΡ€Π°ΠΊΡ‚ΠΈΠΊ . Π­Ρ‚ΠΎ Ρ‚Ρ€Π΅Π±ΡƒΠ΅Ρ‚ использования фСномСнологичСских ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΎΠ² постиТСния мистичСского ΠΎΠΏΡ‹Ρ‚Π°. Π’ Ρ‚ΠΎ ΠΆΠ΅ врСмя мистичСский ΠΎΠΏΡ‹Ρ‚ Π΄ΠΎΠ»ΠΆΠ΅Π½ ΠΎΠΏΠΈΡ€Π°Ρ‚ΡŒΡΡ Π½Π° Ρ€Π΅Π»ΠΈΠ³ΠΈΠΎΠ·Π½ΡƒΡŽ Π΄ΠΎΠ³ΠΌΠ°Ρ‚ΠΈΠΊΡƒ . На основании этого Π² ΡΡ‚Π°Ρ‚ΡŒΠ΅ утвСрТдаСтся , Ρ‡Ρ‚ΠΎ основными мСтодологичСскими ΠΏΡ€ΠΈΠ½Ρ†ΠΈΠΏΠ°ΠΌΠΈ историко Β­ философского исслСдования исихазма являСтся гСрмСнСвтичСский рСконструктивизм мистико Β­ философских тСкстов , фСномСнологичСский дСскриптивизм мистичСского ΠΎΠΏΡ‹Ρ‚Π° ΠΈ ΠΎΠΏΠΎΡ€Π° Π½Π° Π±ΠΎΠ³ΠΎΡΠ»ΠΎΠ²ΡΠΊΡƒΡŽ ΠΈ Ρ†Π΅Ρ€ΠΊΠΎΠ²Π½ΡƒΡŽ Ρ‚Ρ€Π°Π΄ΠΈΡ†ΠΈΡŽ ΠΊΠ°ΠΊ Ρ€Π°Ρ†ΠΈΠΎΠ½Π°Π»ΠΈΠ·Π°Ρ†ΠΈΡŽ этого ΠΎΠΏΡ‹Ρ‚Π°. Π’Π°ΠΊΠΈΠΌ ΠΎΠ±Ρ€Π°Π·ΠΎΠΌ, спСцифика ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΎΠ»ΠΎΠ³ΠΈΠΈ изучСния Π΄Π°Π½Π½ΠΎΠΉ Ρ‚Ρ€Π°Π΄ΠΈΡ†ΠΈΠΈ связана с особСнностями исихазма ΠΊΠ°ΠΊ особого Ρ‚ΠΈΠΏΠ° практичСского философствования .The article is devoted to the research methodology ofΒ  Hesychasm Β­ one of the most important schools of the Byzantine philosophy, which played a significant role in the development of modern civilization. However, to date it remains a kind of Β«terra incognitaΒ» for the world historical and philosophical thought. Hesychasm is a kind of Christian mystical worldview that is embodied in a certain spiritual practices that form the basis of Orthodox asceticism. Even half a century ago, history of philosophy left without attention of philosophical and theological teachings of the authors of the late antiquity and the early middle ages, be they Christian thinkers or the neoΒ­Platonists. The era of postΒ­Plotins philosophers Neoplatonists or commentators on Aristotle considered as a period of decline of this philosophy and the time of the rise of irrationality. For the same reason it was considered that the system of Christian thinkers cannot and should not be subject to the historical and philosophical science. This fully relates Hesychasm. However, on the basis of works of the French philosopher P. Ado, the paper argues that philosophy in late antiquity when there is Hesychasm is first of all a way of life, and therefore Hesychasm can be considered as a specific philosophical school of Christian asceticism. The main modern method of historical and philosophical studies is the hermeneutical reconstruction of cultural meaning of the philosophical texts, however, Hesychasm cannot be reduced to the Β«amount of textsΒ» or rational philosophical discourses. When learning is impossible not to take into account the existing experience, what is behind the lyrics: the experience of the inner purification, Β«the noetic prayer, which often has verbal reflection. Therefore, along with the use of hermeneutic and semiotic principles of research work with the texts, there is a problem of the analysis of the experience of spiritual practices. This requires the use of the phenomenological methods of cognition of mystical experience. At the same time, a mystical experience should be based on religious dogma. On this basis, the paper argues that the main methodological principles of historical and philosophical studies of Hesychasm is the hermeneutical reconstruction mysticalΒ­philosophical texts, phenomenological description mystical experience and reliance on theological and Church tradition as to streamline this experience. Thus, the specific methodology of the study of the traditions connected with the peculiarities of Hesychasm as a special type of practical philosophizing.

    Exotic solutions in string theory

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    Solutions of classical string theory, correspondent to the world sheets, mapped in Minkowsky space with a fold, are considered. Typical processes for them are creation of strings from vacuum, their recombination and annihilation. These solutions violate positiveness of square of mass and Regge condition. In quantum string theory these solutions correspond to physical states |DDF>+|sp> with non-zero spurious component.Comment: accepted in Il Nuovo Cimento A for publication in 199

    Mitigation of 42^{42}Ar/42^{42}K background for the GERDA Phase II experiment

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    Background coming from the 42^{42}Ar decay chain is considered to be one of the most relevant for the GERDA experiment, which aims to search of the neutrinoless double beta decay of 76^{76}Ge. The sensitivity strongly relies on the absence of background around the Q-value of the decay. Background coming from 42^{42}K, a progeny of 42^{42}Ar, can contribute to that background via electrons from the continuous spectrum with an endpoint of 3.5 MeV. Research and development on the suppression methods targeting this source of background were performed at the low-background test facility LArGe. It was demonstrated that by reducing 42^{42}K ion collection on the surfaces of the broad energy germanium detectors in combination with pulse shape discrimination techniques and an argon scintillation veto, it is possible to suppress the 42^{42}K background by three orders of magnitude. This is sufficient for Phase II of the GERDA experiment

    A tapering window for time-domain templates and simulated signals in the detection of gravitational waves from coalescing compact binaries

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    Inspiral signals from binary black holes, in particular those with masses in the range 10M_\odot \lsim M \lsim 1000 M_\odot, may last for only a few cycles within a detector's most sensitive frequency band. The spectrum of a square-windowed time-domain signal could contain unwanted power that can cause problems in gravitational wave data analysis, particularly when the waveforms are of short duration. There may be leakage of power into frequency bins where no such power is expected, causing an excess of false alarms. We present a method of tapering the time-domain waveforms that significantly reduces unwanted leakage of power, leading to a spectrum that agrees very well with that of a long duration signal. Our tapered window also decreases the false alarms caused by instrumental and environmental transients that are picked up by templates with spurious signal power. The suppression of background is an important goal in noise-dominated searches and can lead to an improvement in the detection efficiency of the search algorithms
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