Telnov Dmitry Alexandrovich
Professor, Doctor of Physical and Mathematical Sciences
https://purreportal.spbu.ru
Area of scientific interests:
Theory of interaction of atoms and molecules with strong laser radiation. Among the most important results, one can note the work on calculating the energy and angular distributions of electrons during multiphoton above-threshold ionization, analytical calculations of multiphoton detachment in a constant electric field, calculations of electron spectra and harmonic generation spectra in a dichromatic laser field, work on the formulation of quasi-energy density functional theory and calculations, carried out within the framework of this theory. The main direction of research in recent years has been nonlinear ionization and harmonic generation in diatomic molecules. Using the method of non-stationary density functional theory, calculations of the ionization probability and harmonic spectra of multielectron diatomic molecules were carried out for different orientations of the molecular axis, taking into account the contributions of the internal electron shells. Numerical algorithms have been developed for solving the nonstationary Schrödinger and Kohn-Sham equations based on the generalized pseudospectral method in various coordinate systems and for different systems collocation points. YES. Telnov is the author of more than 150 scientific articles and abstracts of reports at conferences, of which about 90 publications are in publications indexed on the Web of Science platform, one of the most authoritative in the field of scientific citation. In 2004, for a series of works on the vasienergetic formulation of the nonstationary theory of the density functional, he was awarded the first prize at the competition scientific works physical educational and scientific center of St. Petersburg State University.
“Radio “Chocolate” will adjust its broadcast format from January 1, 2018. Instead of current foreign hits, the station will play cover versions of popular music. The name of “Chocolate” will not change. This step is necessary because “Chocolate” failed to gain a sufficient audience to be considered a successful business project.
The changes will also affect thematic programs and sections.
"Hello, friends! Today the last episode of FM-Travellera went on air. If anyone doesn’t know yet, then in a couple of days the Chocolate98FM radio itself, in the form in which you are used to listening to it, will cease to exist. What is coming in its place? How John Cleese said “and now for something completely different,” but I’m afraid it won’t be as funny as Monty Python did in his time.
Experience suggests that when you find yourself on the verge of closing a project that you liked, and I liked Chocolate, it’s customary to choose one of two things: either start “Yaroslavna’s lament” or challenge the famous “and the cook can rule the state.” But I don't want to do either one or the other. It was a great 5.5 years! And I will remember them with joy. There was freedom at Chocolate, no one raped my brain, I was mobile and could appear in the office whenever I wanted. And there was also a great team here all these years. Yurasik, Abrusya, Alinushka, Ilyusha, Pasha, Katya, Seryozha, Stasya, Ira and all, all, all, thank you, it was very cool!
And the audience was worthy. Many friends and acquaintances listened to me again, which is always nice.
Overall, I had a great radio trip. And I would even repeat it. So if anyone on air needs a travel show, let me know. Together with her, I can also give the pilot of a music program into good hands. And another idea, in which music and travel around the world play as a duet.
What's next? For starters, holidays, family, Christmas tree, gifts and endorphins. After the holidays there will be new travels, texts and photos. In the near future, a huge article in l’Officiel Voyage about Lisbon, filming from Dubai in R-Flight, a story about Jordan in S7, and even an audio guide to the Vologda region, which was made based on a large special project for National Geographic Traveler. So I don't plan to disappear from your horizon. Of course, pictures on Insta from new places are also waiting for you. Well, I’ll post links to my journal texts on FB, for those of you who so touchingly write in a personal message “we miss you already,” after reading the mournful posts of your colleagues. And then, look, we’ll be heard again on what kind of radio wave. With coming!
Don't sit still."
It is worth noting that this is not the first attempt to create a radio station on 98.0FM in Moscow, but so far all attempts have not been very successful. The restart of the radio station began under its previous owner, Arkady Gaydamak. In 2007–2008, his United Media holding tried to develop the Kino FM radio station with soundtracks on this frequency, investing several million dollars in its launch. But in 2008, the station was renamed “98 Hits” and refocused on popular music. Since 2010, Radio “Chocolate” was launched instead.
Travel photographer, journalist and host of the travel program FM-Traveller on Chocolate98FM radio talks about what unexpected discoveries and shots can be made in Nepal. Dmitry Telnov.
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Arriving in Nepal for the first time, I was surprised to discover that this country is actually strikingly different from what is commonly believed about it. However, my friends from Himalayan Holidays assure us that we know nothing about it at all. Most of our fellow citizens cannot even correctly indicate where it is located on the world map. And those who can usually confuse Nepal with Bhutan, or with Tibet. The reason for this error most likely lies in the Himalayas. Most of us are accustomed to thinking that Buddhist monasteries are built here and there on the slopes of the highest mountains of our planet. Buddhism really exists in Nepal, it would not be so; Buddha Shakyamuni himself was born in this country - not far from a village called Lumbini. But three out of four inhabitants of modern Nepal are Hindus. And this religion presupposes completely different colors, customs, education, cuisine, architecture.
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However, religion is not the only reason for surprise. The Himalayan peaks are so high that in their shadow it is impossible to discern other Nepalese delights. For example, national parks. And there are plenty of them here - the most interesting ones are in the Chitwan region. On the plains, where most of the locals and all other mammals live, you can even go on safari. Although I always thought that, like the word itself (safari means “journey” in Swahili), it was a uniquely African activity. Bengal tigers, Indian elephants and rhinoceroses can get caught in the lens, so taking at least 70-200 with you would be a good idea.
For most travelers, exploring Nepal begins in Kathmandu. At first glance, Kathmandu looks like a paint factory has just blown up in the city. Everything around is literally filled with color. The red sari is reflected in the golden Buddha statue standing next to the well-smoked wooden temple.
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The windows are full of souvenirs, bunches of greenery on the stalls of street vendors coexist with the tinsmith's silver. The beads shimmer in the sun, illuminating the walls of the surrounding houses with sunbeams, like a mirror ball in a nightclub. And when you decide to give your eyes a rest and look up at the sky, expecting to see only blue silence there, it turns out that you can’t even see it behind the Buddhist flags. It’s good that it was in Nepal that I tested the Nikon D810 camera - it was able to convey these colors one to one even without additional retouching.
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There is no trace of silence in Kathmandu. In the city center, the only things you will see on the street are a multi-ton truck and a train. Everything else is walking, running, driving, dodging oncoming traffic, and, of course, making all sorts of noise. The capital of Nepal resembles a puppy, who, wagging his tail with joy, jumps around you with all his might, trying to attract attention. You've arrived! Hooray! Finally! It is useless to resist the energy of a boiling city. And it's not necessary. Kathmandu is one of those places where a guidebook seems anachronistic. Life here is seething with such force that trying to impose your plan or your rhythm on the city is real stupidity. It’s terribly disappointing to check your route with some guide while looking at a map. Here you need to look around, and with all your eyes. And why do you need someone’s instructions if all the fruits from the tree of local life, including forbidden ones, fall into your hands? And literally around every corner a new meeting awaits you, either with a colorful character or with an unusual subject for a photo.
The only disadvantage of this city for a photographer is that many street models They will ask you for a fee for shooting, so take a lot of small change with you (the colorful sadhus that you will definitely want to photograph ask, for example, from 50 to 100 Nepalese rupees for a photo session. This is 0.5-1 $).
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However, most photographs in Nepal were taken in the mountains. Or near them. In my case it was Annapurna. This is not even a mountain, but a whole mountain range near the city of Pokhara. Nine peaks, the lowest of which is 7 kilometers high. The same as the Boulevard Ring in Moscow. Imagine that someone straightened it out and stuck it in the ground. Impressive, right? These mountains, as they say, grow to the skies. The hackneyed phrase, which I myself used many times inappropriately, eventually came in handy. If you stand below in the valley (by the way, the deepest on our planet), to see the peaks of Annapurna, you will have to throw your head back so much that your neck will hurt. They are huge, great, grandiose - choose any epithet. It’s better to take several at once; words of praise will definitely not be superfluous. The only thing that confuses me is the mountain boots that I have to wear to see the peaks up close. And also porters who need to be hired to carry your luggage. A tent that you will have to buy. Ice ax Ropes. Canned food for the road. All together it doesn't really feel like a vacation. Rather, another word would be more suitable - expedition. What to do if you are not ready to grow a beard and pick up a guitar?
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Upon a quick inspection, I immediately found two solutions to this problem. The first one is for the lazy. Stay in a hotel with a view. And one was found in Nepal. It's called Tiger Mountain Pokhara Lodge. Each villa of this hotel is designed in such a way that you can see the Himalayas without getting out of bed. Moreover, each bed offers its own unique view. Which contributes to adultery, I guess.
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But I arrived in Nepal with completely different goals, so after one of the best mornings of my life, I hurried to the airport. Solution number two can only be found there. Ultralight aircraft Avia Club Nepal, which, by the way, is owned by our former compatriot, will take you to the very heart of the mountains in a matter of minutes. It is unlikely that any of you and I will be closer to space in our lives, no matter how long we live. And now I’m not talking about the distance; you can go higher on any commercial airbus, but about the view that opens from the plane. This is another planet.
ISO400; 70mm ; f2.8 ; 1/200sec
All the most interesting things about the Himalayas are hidden behind the façade. This is what amazes a house in Holland: as soon as you enter its door, there is a huge space in front of you, which you had no idea about when standing at the entrance. In flight, you get a similar feeling: at some point you seem to cross the line between reality and sleep. You start searching for words to try and describe what you saw to your friends when you land. But even when your flight home ends, and not just today's short flight, you still won't find them.
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Although, on the other hand, upon returning home, most often I remember not the Nepalese views, but the inhabitants of this country. I probably enjoyed filming them the most. Open, like the aperture of a fast lens, the Nepalese literally glow, despite the fact that their homeland cannot be called rich. And in order to achieve the desired result in the frame, you will not need to persuade your potential model for a long time or “accustom” her to your company and the camera. Nepalese people are who they are. Unsophisticated, welcoming, full of life, so if you love portrait photography, start packing your camera backpack. The best season in Nepal lasts from September to April.
ISO400; 24mm ; f5,6 ; 1/400sec
About technology
Camera Nikon D810 - full frame DSLR camera. These three words alone serve as a guarantee of quality and give a complete picture of the camera that I took with me on this trip. Fast and accurate autofocus, excellent color rendition and the ability to work in difficult lighting conditions (deep shadows in one part of the frame and a sea of sun in the other) - all this has long become synonymous with Nikon technology. For shooting reports, the Nikon D810 is an extremely good choice. Still, the camera weighs slightly less than the professional D4S model, and the difference in weight in this case is one of the priorities, especially if you plan to spend several days outdoors. And even more so if you are used to having several cameras with different lenses on hand at once.
NIkkor 70-200 f/2.8G ED AF-S VR II - having this lens when shooting in Nepal is vital. And not only because from time to time rare animals may appear in the frame, which are not very ready to be allowed close to them. In the city, 70-200 will also come in handy. This will save you, for example, from a million children in every frame, and many of your potential models will not pose and, accordingly, will turn out much more natural. A white man with an expensive camera makes Nepalese want to talk about the injustice of wealth in this world, so unless you were planning on turning your photo tour into a charity trip, don't forget to put it in your photo backpack.
ISO200; 40mm ; f5,6 ; 1/250sec
ISO200; 195mm ; f2.8 ; 1/160sec
ISO200; 56mm ; f3,2 ; 1/1250sec
ISO400; 24mm ; f5,6 ; 1/2500sec
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Academic degree: Doctor of Physical and Mathematical Sciences
Academic title: professor
participant of the encyclopedia "Famous Scientists"
Area of scientific interests: Theory of multiphoton processes in atoms and molecules. Among the most important results, one can note the work on calculating the energy and angular distributions of electrons during multiphoton above-threshold separation from a negative H- ion, analytical calculations of multiphoton separation in a constant electric field, calculations of electron spectra and harmonic generation spectra in a dichromatic laser field, work on the formulation of quasi-energy theory density functional and calculations carried out within the framework of this theory. The main direction of research in recent years has been multiphoton ionization and harmonic generation in diatomic molecules. A nonstationary method for calculating complex quasi-energies in a monochromatic external field and a method for numerically solving the nonstationary Schrödinger equation for a pulsed external field have been developed. For a one-electron H2+ molecule, calculations were carried out directly from first principles, for multi-electron diatomic molecules - using non-stationary density functional theory. D. A. Telnov is the author of 90 scientific and educational publications. In 2004, for a series of works on the quasi-energy formulation of the non-stationary theory of the density functional, he was awarded the first prize at the competition of scientific works of the Physics Educational and Research Center of St. Petersburg State University. D. A. Telnov entered the Faculty of Physics of Leningrad State University in 1979 and graduated with honors in 1984. In the period from 1985 to 1988, he completed postgraduate studies at the Research Institute of Physics of St. Petersburg State University. In 1988, he defended his Ph.D. thesis on the topic “Adiabatic theory of multiphoton ionization.” From 1988 to 1997, D. A. Telnov worked as an assistant at the Department of Quantum Mechanics of St. Petersburg State University, from 1997 to 2006 - as an assistant professor at the same department. In 1999, he was awarded the academic title of Associate Professor in the Department of Quantum Mechanics. In 2004, D. A. Telnov defended his doctoral dissertation on the topic “Method of quasi-stationary quasi-energy states in the theory of multiphoton ionization of atoms and generation of high-order harmonics.” Since 2006, he has been working as a professor at the Department of Quantum Mechanics, giving lectures on “Theoretical Mechanics”, “Collision Theory I” and “Photoionization Processes in Atoms”, conducting practical classes and seminars. Since 1994, D. A. Telnov has been collaborating with the group of quantum and computational chemistry at the University of Kansas (USA) under the leadership of Professor Shi-I Chu. Since 2008, scientific cooperation has been developing with the Center for Quantum Science and Engineering Research in National University Taiwan.
Scientific publications:
V. N. Ostrovsky, D. A. Telnov. Multiphoton detachment by elliptically polarized wave in static electric field. Laser Physics, 1993, v.3, p.495.
D. A. Telnov, J. Wang, S. I. Chu. Two-color phase control of high-order harmonic generation in intense laser fields. Phys. Rev. A, 1995, v.52, p.3988.
D. A. Telnov, S. I. Chu. Floquet formulation of time-dependent density functional theory. Chem. Phys. Lett., 1997, v.264, p.466.
D. A. Telnov, S. I. Chu. Multiphoton detachment of H- near the one-photon threshold: Exterior-complex-scaling - generalized pseudospectral method for complex quasienergy resonances. Phys. Rev. A, 1999, v.59, p.2864.
D. A. Telnov, S. I. Chu. Multiphoton above-threshold detachment of Li-: Exterior-complex-scaling - generalized-pseudospectral method for calculations of complex-quasienergy resonances in Floquet formulation of time-dependent density-functional theory. Phys. Rev. A, 2002, v.66, 043417.
S. I. Chu, D. A. Telnov. Beyond the Floquet theorem: generalized Floquet formalisms and quasienergy methods for atomic and molecular multiphoton processes in intense laser fields. Phys. Rep., 2004, v.390, p.1.
D. A. Telnov, S. I. Chu. Ab initio study of high-order harmonic generation of H2+ in intense laser fields: Time-dependent non-Hermitian Floquet approach. Phys. Rev. A, 2005, v.71, 013408.
D. A. Telnov, S. I. Chu. Ab initio study of the orientation effects in multiphoton ionization and high-order harmonic generation from the ground and excited electronic states of H2+. Phys. Rev. A, 2007, v.76, 043412.
D. A. Telnov, S. I. Chu. Effects of electron structure and multi-electron dynamical response on strong-field multiphoton ionization of diatomic molecules with arbitrary orientation: An all-electron time-dependent density-functional-theory approach. Phys. Rev. A, 2009, v.79, 041401(R).
D. A. Telnov, S. I. Chu. Above-threshold-ionization spectrum from the core region of a time-dependent wave packet: An ab initio time-dependent approach. Phys. Rev. A, 2009, v.79, 043421.
